Use multiplication:
28606072 x 97:
Line up our numbers vertically:
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | |
x | 9 | 7 |
Current result: 7 x 2 = 14
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
4 |
Show value = 4
Carry value = 1
Step 2:
Last step carry value was 1.
Our current result equals:
7 x 7 + Carry value of 1 = 50
1 | |||||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
0 | 4 |
Show value = 0
Carry value = 5
Step 3:
Last step carry value was 5.
Our current result equals:
7 x 0 + Carry value of 5 = 5
5 | 1 | ||||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
5 | 0 | 4 |
Show value = 5
Current result: 7 x 6 = 42
5 | 1 | ||||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 5 | 0 | 4 |
Show value = 2
Carry value = 4
Step 5:
Last step carry value was 4.
Our current result equals:
7 x 0 + Carry value of 4 = 4
4 | 5 | 1 | |||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
4 | 2 | 5 | 0 | 4 |
Show value = 4
Current result: 7 x 6 = 42
4 | 5 | 1 | |||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 4 | 2 | 5 | 0 | 4 |
Show value = 2
Carry value = 4
Step 7:
Last step carry value was 4.
Our current result equals:
7 x 8 + Carry value of 4 = 60
4 | 4 | 5 | 1 | ||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
0 | 2 | 4 | 2 | 5 | 0 | 4 |
Show value = 0
Carry value = 6
Step 8:
Last step carry value was 6.
Our current result equals:
7 x 2 + Carry value of 6 = 20
6 | 4 | 4 | 5 | 1 | |||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 |
Show value = 20
New multiplication row:
Insert a 0 as our placeholder
Current result: 9 x 2 = 18
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
8 | 0 |
Show value = 8
Carry value = 1
Step 10:
Last step carry value was 1.
Our current result equals:
9 x 7 + Carry value of 1 = 64
1 | |||||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
4 | 8 | 0 |
Show value = 4
Carry value = 6
Step 11:
Last step carry value was 6.
Our current result equals:
9 x 0 + Carry value of 6 = 6
6 | 1 | ||||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
6 | 4 | 8 | 0 |
Show value = 6
Current result: 9 x 6 = 54
6 | 1 | ||||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
4 | 6 | 4 | 8 | 0 |
Show value = 4
Carry value = 5
Step 13:
Last step carry value was 5.
Our current result equals:
9 x 0 + Carry value of 5 = 5
5 | 6 | 1 | |||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
5 | 4 | 6 | 4 | 8 | 0 |
Show value = 5
Current result: 9 x 6 = 54
5 | 6 | 1 | |||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
4 | 5 | 4 | 6 | 4 | 8 | 0 |
Show value = 4
Carry value = 5
Step 15:
Last step carry value was 5.
Our current result equals:
9 x 8 + Carry value of 5 = 77
5 | 5 | 6 | 1 | ||||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 |
Show value = 7
Carry value = 7
Step 16:
Last step carry value was 7.
Our current result equals:
9 x 2 + Carry value of 7 = 25
7 | 5 | 5 | 6 | 1 | |||||||
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
2 | 5 | 7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 |
Show value = 25
Add up our results by column:
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
2 | 5 | 7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 | ||
4 |
Adding up column 1, we get: 4 + 0
Our column sum becomes 4.
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
2 | 5 | 7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 | ||
8 | 4 |
Adding up column 2, we get: 0 + 8
Our column sum becomes 8.
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
2 | 5 | 7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 | ||
9 | 8 | 4 |
Adding up column 3, we get: 5 + 4
Our column sum becomes 9.
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
2 | 5 | 7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 | ||
8 | 9 | 8 | 4 |
Adding up column 4, we get: 2 + 6
Our column sum becomes 8.
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
2 | 5 | 7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 | ||
8 | 8 | 9 | 8 | 4 |
Adding up column 5, we get: 4 + 4
Our column sum becomes 8.
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
2 | 5 | 7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 | ||
7 | 8 | 8 | 9 | 8 | 4 |
Adding up column 6, we get: 2 + 5
Our column sum becomes 7.
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
2 | 5 | 7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 | ||
4 | 7 | 8 | 8 | 9 | 8 | 4 |
Adding up column 7, we get: 0 + 4
Our column sum becomes 4.
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
2 | 5 | 7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 | ||
7 | 4 | 7 | 8 | 8 | 9 | 8 | 4 |
Adding up column 8, we get: 0 + 7
Our column sum becomes 7.
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
2 | 5 | 7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 | ||
7 | 7 | 4 | 7 | 8 | 8 | 9 | 8 | 4 |
Adding up column 9, we get: 2 + 5
Our column sum becomes 7.
2 | 8 | 6 | 0 | 6 | 0 | 7 | 2 | ||||
x | 9 | 7 | |||||||||
2 | 0 | 0 | 2 | 4 | 2 | 5 | 0 | 4 | |||
2 | 5 | 7 | 4 | 5 | 4 | 6 | 4 | 8 | 0 | ||
2 | 7 | 7 | 4 | 7 | 8 | 8 | 9 | 8 | 4 |
Adding up column 10, we get: 2
Our column sum becomes 2.