88986538 ÷ 638 
We're looking to find how many times 638 goes into 88986538.

On to step 1:
The number 638 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 638

Going ahead to step 2:
If we divide 88 by 638, we get 0 and a remainder of 88.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 88 and we're left with 88.
Grab the next digit (9) from the dividend, add it to 88, then carry on: 889 / 638

Going ahead to step 3:
If we divide 889 by 638, we get 1 and a remainder of 251.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 638 from 889 to get 251.
Fetch the next digit (8) from the dividend, attach it to 251 and continue: 2518 / 638

On to step 4:
2518 divided by 638 is 3 with a remainder of 604.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 1914 from 2518 to get 604.
Bring next digit (6) of the dividend behind the 604 and repeat the process: 6046 / 638

Moving on to step 5:
638 can be fit into 6046 9 times, resulting in a remainder of 304.
Write down 9 as next digit of the result. 
Result so far: 139.0
Subtracting 5742 from 6046 leaves us with 304.
Grab the next digit (5) from the dividend, add it to 304, then carry on: 3045 / 638

Advancing to step 6:
When dividing 3045 by 638, we get 4 with a remainder of 493.
Record the quotient 4 as the next digit in the result. 
Result so far: 1394.0
Subtract 2552 from 3045 to get 493.
Take the next digit (3) from the dividend and append it to 493, then repeat: 4933 / 638

Moving on to step 7:
The number 638 fits into 4933 7 times, leaving a remainder of 467.
The number 7 becomes the next digit in our result. 
Result so far: 13947.0
Subtract 4466 from 4933 to get 467.
Bring next digit (8) of the dividend behind the 467 and repeat the process: 4678 / 638

Let's proceed to step 8:
638 goes into 4678 7 times with a remainder of 212.
Use 7 as the next digit of our solution. 
Result so far: 139477.0
Subtracting 4466 from 4678 leaves us with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Moving on to step 9:
638 can be fit into 2120 3 times, resulting in a remainder of 206.
The number 3 becomes the next digit in our result. 
Result so far: 139477.3
If we subtract 1914 from 2120, we get 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Let's proceed to step 10:
If we divide 2060 by 638, we get 3 and a remainder of 146.
Write down 3 as next digit of the result. 
Result so far: 139477.33
Subtracting 1914 from 2060 leaves us with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

After the division, we end up with 139477.33 and a remainder of 0.146.