89136515 ÷ 638 
Let's see how many times 638 fits into 89136515.

Moving on to step 1:
If we divide 8 by 638, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 638

Advancing to step 2:
If we divide 89 by 638, we get 0 and a remainder of 89.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 89 and we're left with 89.
Append the next digit (1) from the dividend to 89 and continue with: 891 / 638

Advancing to step 3:
The number 638 fits into 891 1 times, leaving a remainder of 253.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 253 after subtracting 638 from 891.
Take the next digit (3) from the dividend and append it to 253, then repeat: 2533 / 638

Step 4:
638 can be fit into 2533 3 times, resulting in a remainder of 619.
The next digit of our result is 3. 
Result so far: 13.0
Subtract 1914 from 2533 to get 619.
Bring next digit (6) of the dividend behind the 619 and repeat the process: 6196 / 638

Advancing to step 5:
6196 divided by 638 is 9 with a remainder of 454.
Write down 9 as next digit of the result. 
Result so far: 139.0
Subtracting 5742 from 6196 leaves us with 454.
Fetch the next digit (5) from the dividend, attach it to 454 and continue: 4545 / 638

Going ahead to step 6:
4545 divided by 638 is 7 with a remainder of 79.
The number 7 becomes the next digit in our result. 
Result so far: 1397.0
If we subtract 4466 from 4545, we get 79.
Include the next digit (1) from the dividend after 79, then repeat: 791 / 638

On to step 7:
The number 638 fits into 791 1 times, leaving a remainder of 153.
The next digit of our result is 1. 
Result so far: 13971.0
Deduct 638 from 791 and we're left with 153.
Fetch the next digit (5) from the dividend, attach it to 153 and continue: 1535 / 638

Let's proceed to step 8:
638 can be fit into 1535 2 times, resulting in a remainder of 259.
Write down 2 as next digit of the result. 
Result so far: 139712.0
The remainder is 259 after subtracting 1276 from 1535.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Let's proceed to step 9:
When dividing 2590 by 638, we get 4 with a remainder of 38.
Use 4 as the next digit of our solution. 
Result so far: 139712.4
Subtracting 2552 from 2590 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 10:
When dividing 380 by 638, we get 0 with a remainder of 380.
Record the quotient 0 as the next digit in the result. 
Result so far: 139712.4
Subtracting 0 from 380 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Let's proceed to step 11:
3800 divided by 638 is 5 with a remainder of 610.
Record the quotient 5 as the next digit in the result. 
Result so far: 139712.405
If we subtract 3190 from 3800, we get 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Going ahead to step 12:
638 goes into 6100 9 times with a remainder of 358.
Use 9 as the next digit of our solution. 
Result so far: 139712.4059
Subtracting 5742 from 6100 leaves us with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Moving on to step 13:
When dividing 3580 by 638, we get 5 with a remainder of 390.
The next digit of our result is 5. 
Result so far: 139712.40595
If we subtract 3190 from 3580, we get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Step 14:
When dividing 3900 by 638, we get 6 with a remainder of 72.
Write down 6 as next digit of the result. 
Result so far: 139712.405956
If we take 3828 away from 3900, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 15:
When dividing 720 by 638, we get 1 with a remainder of 82.
Write down 1 as next digit of the result. 
Result so far: 139712.4059561
If we subtract 638 from 720, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 16:
The number 638 fits into 820 1 times, leaving a remainder of 182.
Use 1 as the next digit of our solution. 
Result so far: 139712.40595611
Deduct 638 from 820 and we're left with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

After the division, we end up with 139712.40595611 and a remainder of 1.82e-07.