85137391 divided by 638 
Our goal is to divide 85137391 by 638.

On to step 1:
638 can be fit into 8 0 times, resulting in 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 (5) from the dividend after 8, then repeat: 85 / 638

Advancing to step 2:
85 divided by 638 is 0 with a remainder of 85.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Append the next digit (1) from the dividend to 85 and continue with: 851 / 638

On to step 3:
When dividing 851 by 638, we get 1 with a remainder of 213.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 638 from 851 and we're left with 213.
Take the next digit (3) from the dividend and append it to 213, then repeat: 2133 / 638

Moving on to step 4:
638 can be fit into 2133 3 times, resulting in a remainder of 219.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Deduct 1914 from 2133 and we're left with 219.
Fetch the next digit (7) from the dividend, attach it to 219 and continue: 2197 / 638

Advancing to step 5:
When dividing 2197 by 638, we get 3 with a remainder of 283.
Use 3 as the next digit of our solution. 
Result so far: 133.0
Subtract 1914 from 2197 to get 283.
Grab the next digit (3) from the dividend, add it to 283, then carry on: 2833 / 638

Moving on to step 6:
2833 divided by 638 is 4 with a remainder of 281.
Put 4 as the next digit of the answer. 
Result so far: 1334.0
If we take 2552 away from 2833, we end up with 281.
Take the next digit (9) from the dividend and append it to 281, then repeat: 2819 / 638

On to step 7:
2819 divided by 638 is 4 with a remainder of 267.
The next digit of our result is 4. 
Result so far: 13344.0
Deduct 2552 from 2819 and we're left with 267.
Include the next digit (1) from the dividend after 267, then repeat: 2671 / 638

Going ahead to step 8:
When dividing 2671 by 638, we get 4 with a remainder of 119.
Use 4 as the next digit of our solution. 
Result so far: 133444.0
Subtract 2552 from 2671 to get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Going ahead to step 9:
1190 divided by 638 is 1 with a remainder of 552.
Write down 1 as next digit of the result. 
Result so far: 133444.1
The remainder is 552 after subtracting 638 from 1190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Advancing to step 10:
When dividing 5520 by 638, we get 8 with a remainder of 416.
Record the quotient 8 as the next digit in the result. 
Result so far: 133444.18
If we take 5104 away from 5520, we end up with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Moving on to step 11:
638 goes into 4160 6 times with a remainder of 332.
Use 6 as the next digit of our solution. 
Result so far: 133444.186
The remainder is 332 after subtracting 3828 from 4160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Moving on to step 12:
3320 divided by 638 is 5 with a remainder of 130.
The number 5 becomes the next digit in our result. 
Result so far: 133444.1865
The remainder is 130 after subtracting 3190 from 3320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Let's proceed to step 13:
638 can be fit into 1300 2 times, resulting in a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 133444.18652
Deduct 1276 from 1300 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 14:
The number 638 fits into 240 0 times, leaving a remainder of 240.
Put 0 as the next digit of the answer. 
Result so far: 133444.18652
Subtract 0 from 240 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 15:
When dividing 2400 by 638, we get 3 with a remainder of 486.
Write down 3 as next digit of the result. 
Result so far: 133444.1865203
Subtract 1914 from 2400 to get 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

On to step 16:
The number 638 fits into 4860 7 times, leaving a remainder of 394.
The number 7 becomes the next digit in our result. 
Result so far: 133444.18652037
Subtracting 4466 from 4860 leaves us with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Our division results in 133444.18652037 with a remaining 3.94e-07.