We're dividing 13129479 by 939 
We're looking to find how many times 939 goes into 13129479.

Step 1:
939 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 939

On to step 2:
The number 939 fits into 13 0 times, leaving a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Bring next digit (1) of the dividend behind the 13 and repeat the process: 131 / 939

On to step 3:
939 can be fit into 131 0 times, resulting in a remainder of 131.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 131 to get 131.
Append the next digit (2) from the dividend to 131 and continue with: 1312 / 939

Going ahead to step 4:
939 goes into 1312 1 times with a remainder of 373.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 939 from 1312, we get 373.
Include the next digit (9) from the dividend after 373, then repeat: 3739 / 939

Moving on to step 5:
939 can be fit into 3739 3 times, resulting in a remainder of 922.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we subtract 2817 from 3739, we get 922.
Include the next digit (4) from the dividend after 922, then repeat: 9224 / 939

Moving on to step 6:
The number 939 fits into 9224 9 times, leaving a remainder of 773.
Put 9 as the next digit of the answer. 
Result so far: 139.0
The remainder is 773 after subtracting 8451 from 9224.
Take the next digit (7) from the dividend and append it to 773, then repeat: 7737 / 939

Advancing to step 7:
939 goes into 7737 8 times with a remainder of 225.
Record the quotient 8 as the next digit in the result. 
Result so far: 1398.0
The remainder is 225 after subtracting 7512 from 7737.
Grab the next digit (9) from the dividend, add it to 225, then carry on: 2259 / 939

Advancing to step 8:
939 goes into 2259 2 times with a remainder of 381.
Record the quotient 2 as the next digit in the result. 
Result so far: 13982.0
If we subtract 1878 from 2259, we get 381.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Advancing to step 9:
The number 939 fits into 3810 4 times, leaving a remainder of 54.
Record the quotient 4 as the next digit in the result. 
Result so far: 13982.4
Subtracting 3756 from 3810 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 10:
540 divided by 939 is 0 with a remainder of 540.
Record the quotient 0 as the next digit in the result. 
Result so far: 13982.4
If we take 0 away from 540, we end up with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Advancing to step 11:
939 goes into 5400 5 times with a remainder of 705.
The next digit of our result is 5. 
Result so far: 13982.405
Subtract 4695 from 5400 to get 705.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7050, and continue the process.

Going ahead to step 12:
When dividing 7050 by 939, we get 7 with a remainder of 477.
Write down 7 as next digit of the result. 
Result so far: 13982.4057
Subtract 6573 from 7050 to get 477.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

On to step 13:
When dividing 4770 by 939, we get 5 with a remainder of 75.
The next digit of our result is 5. 
Result so far: 13982.40575
If we subtract 4695 from 4770, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 14:
When dividing 750 by 939, we get 0 with a remainder of 750.
Write down 0 as next digit of the result. 
Result so far: 13982.40575
If we take 0 away from 750, we end up with 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Going ahead to step 15:
939 can be fit into 7500 7 times, resulting in a remainder of 927.
The next digit of our result is 7. 
Result so far: 13982.4057507
If we subtract 6573 from 7500, we get 927.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9270, and continue the process.

Advancing to step 16:
When dividing 9270 by 939, we get 9 with a remainder of 819.
Put 9 as the next digit of the answer. 
Result so far: 13982.40575079
If we subtract 8451 from 9270, we get 819.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8190, and continue the process.

The final result is 13982.40575079 with a remainder of 8.19e-07.