We look at the division of 39413131 by 936 
We want to divide 39413131 by 936.

On to step 1:
The number 936 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 936

Step 2:
If we divide 39 by 936, we get 0 and a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Bring next digit (4) of the dividend behind the 39 and repeat the process: 394 / 936

Advancing to step 3:
The number 936 fits into 394 0 times, leaving a remainder of 394.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 394 and we're left with 394.
Take the next digit (1) from the dividend and append it to 394, then repeat: 3941 / 936

Moving on to step 4:
936 can be fit into 3941 4 times, resulting in a remainder of 197.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 3744 from 3941 to get 197.
Include the next digit (3) from the dividend after 197, then repeat: 1973 / 936

On to step 5:
936 can be fit into 1973 2 times, resulting in a remainder of 101.
Write down 2 as next digit of the result. 
Result so far: 42.0
If we take 1872 away from 1973, we end up with 101.
Take the next digit (1) from the dividend and append it to 101, then repeat: 1011 / 936

Moving on to step 6:
1011 divided by 936 is 1 with a remainder of 75.
Put 1 as the next digit of the answer. 
Result so far: 421.0
Subtracting 936 from 1011 leaves us with 75.
Take the next digit (3) from the dividend and append it to 75, then repeat: 753 / 936

Advancing to step 7:
The number 936 fits into 753 0 times, leaving a remainder of 753.
Write down 0 as next digit of the result. 
Result so far: 4210.0
Deduct 0 from 753 and we're left with 753.
Take the next digit (1) from the dividend and append it to 753, then repeat: 7531 / 936

Advancing to step 8:
7531 divided by 936 is 8 with a remainder of 43.
Record the quotient 8 as the next digit in the result. 
Result so far: 42108.0
If we subtract 7488 from 7531, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 9:
430 divided by 936 is 0 with a remainder of 430.
The next digit of our result is 0. 
Result so far: 42108.0
Subtracting 0 from 430 leaves us with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Going ahead to step 10:
936 goes into 4300 4 times with a remainder of 556.
The number 4 becomes the next digit in our result. 
Result so far: 42108.04
Subtracting 3744 from 4300 leaves us with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Advancing to step 11:
936 goes into 5560 5 times with a remainder of 880.
Use 5 as the next digit of our solution. 
Result so far: 42108.045
If we subtract 4680 from 5560, we get 880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8800, and continue the process.

Going ahead to step 12:
936 goes into 8800 9 times with a remainder of 376.
Write down 9 as next digit of the result. 
Result so far: 42108.0459
Subtract 8424 from 8800 to get 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Moving on to step 13:
936 goes into 3760 4 times with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 42108.04594
Deduct 3744 from 3760 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 14:
If we divide 160 by 936, we get 0 and a remainder of 160.
Write down 0 as next digit of the result. 
Result so far: 42108.04594
Subtracting 0 from 160 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 15:
The number 936 fits into 1600 1 times, leaving a remainder of 664.
The next digit of our result is 1. 
Result so far: 42108.0459401
Subtract 936 from 1600 to get 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

Going ahead to step 16:
The number 936 fits into 6640 7 times, leaving a remainder of 88.
The number 7 becomes the next digit in our result. 
Result so far: 42108.04594017
Subtracting 6552 from 6640 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

After the division, we end up with 42108.04594017 and a remainder of 8.8e-08.