88936893 ÷ 638 
Our goal is to divide 88936893 by 638.

Moving on to step 1:
638 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 638

Moving on to step 2:
The number 638 fits into 88 0 times, leaving a remainder of 88.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 88 after subtracting 0 from 88.
Append the next digit (9) from the dividend to 88 and continue with: 889 / 638

Step 3:
If we divide 889 by 638, we get 1 and a remainder of 251.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 638 from 889 leaves us with 251.
Include the next digit (3) from the dividend after 251, then repeat: 2513 / 638

Step 4:
If we divide 2513 by 638, we get 3 and a remainder of 599.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtract 1914 from 2513 to get 599.
Fetch the next digit (6) from the dividend, attach it to 599 and continue: 5996 / 638

Advancing to step 5:
When dividing 5996 by 638, we get 9 with a remainder of 254.
The next digit of our result is 9. 
Result so far: 139.0
If we subtract 5742 from 5996, we get 254.
Grab the next digit (8) from the dividend, add it to 254, then carry on: 2548 / 638

Let's proceed to step 6:
638 goes into 2548 3 times with a remainder of 634.
Use 3 as the next digit of our solution. 
Result so far: 1393.0
If we subtract 1914 from 2548, we get 634.
Bring next digit (9) of the dividend behind the 634 and repeat the process: 6349 / 638

Let's proceed to step 7:
If we divide 6349 by 638, we get 9 and a remainder of 607.
Use 9 as the next digit of our solution. 
Result so far: 13939.0
If we take 5742 away from 6349, we end up with 607.
Append the next digit (3) from the dividend to 607 and continue with: 6073 / 638

On to step 8:
638 goes into 6073 9 times with a remainder of 331.
Write down 9 as next digit of the result. 
Result so far: 139399.0
The remainder is 331 after subtracting 5742 from 6073.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Advancing to step 9:
The number 638 fits into 3310 5 times, leaving a remainder of 120.
Record the quotient 5 as the next digit in the result. 
Result so far: 139399.5
Subtract 3190 from 3310 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 10:
638 can be fit into 1200 1 times, resulting in a remainder of 562.
The next digit of our result is 1. 
Result so far: 139399.51
Subtracting 638 from 1200 leaves us with 562.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5620, and continue the process.

Moving on to step 11:
When dividing 5620 by 638, we get 8 with a remainder of 516.
Put 8 as the next digit of the answer. 
Result so far: 139399.518
Deduct 5104 from 5620 and we're left with 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Step 12:
638 goes into 5160 8 times with a remainder of 56.
The number 8 becomes the next digit in our result. 
Result so far: 139399.5188
The remainder is 56 after subtracting 5104 from 5160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final result is 139399.5188 with a remainder of 0.00056.