We look at the division of 87260531 by 638 
Our goal is to divide 87260531 by 638.

Moving on to step 1:
The number 638 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 638

Moving on to step 2:
87 divided by 638 is 0 with a remainder of 87.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Bring next digit (2) of the dividend behind the 87 and repeat the process: 872 / 638

Moving on to step 3:
638 goes into 872 1 times with a remainder of 234.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 638 from 872 leaves us with 234.
Include the next digit (6) from the dividend after 234, then repeat: 2346 / 638

Going ahead to step 4:
When dividing 2346 by 638, we get 3 with a remainder of 432.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we take 1914 away from 2346, we end up with 432.
Fetch the next digit (0) from the dividend, attach it to 432 and continue: 4320 / 638

Let's proceed to step 5:
638 can be fit into 4320 6 times, resulting in a remainder of 492.
The number 6 becomes the next digit in our result. 
Result so far: 136.0
Subtracting 3828 from 4320 leaves us with 492.
Append the next digit (5) from the dividend to 492 and continue with: 4925 / 638

Going ahead to step 6:
The number 638 fits into 4925 7 times, leaving a remainder of 459.
Record the quotient 7 as the next digit in the result. 
Result so far: 1367.0
The remainder is 459 after subtracting 4466 from 4925.
Grab the next digit (3) from the dividend, add it to 459, then carry on: 4593 / 638

On to step 7:
638 goes into 4593 7 times with a remainder of 127.
The number 7 becomes the next digit in our result. 
Result so far: 13677.0
Subtract 4466 from 4593 to get 127.
Fetch the next digit (1) from the dividend, attach it to 127 and continue: 1271 / 638

Moving on to step 8:
When dividing 1271 by 638, we get 1 with a remainder of 633.
Put 1 as the next digit of the answer. 
Result so far: 136771.0
Subtracting 638 from 1271 leaves us with 633.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6330, and continue the process.

Advancing to step 9:
638 goes into 6330 9 times with a remainder of 588.
Record the quotient 9 as the next digit in the result. 
Result so far: 136771.9
The remainder is 588 after subtracting 5742 from 6330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

On to step 10:
The number 638 fits into 5880 9 times, leaving a remainder of 138.
The next digit of our result is 9. 
Result so far: 136771.99
Subtract 5742 from 5880 to get 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

The final outcome is 136771.99, with a leftover of 0.138.