We look at the division of 331129 by 12 
Our goal is to divide 331129 by 12.

On to step 1:
The number 12 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 12

On to step 2:
When dividing 33 by 12, we get 2 with a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 24 from 33, we get 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 12

Step 3:
12 goes into 91 7 times with a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 27.0
If we subtract 84 from 91, we get 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 12

Step 4:
71 divided by 12 is 5 with a remainder of 11.
Put 5 as the next digit of the answer. 
Result so far: 275.0
Deduct 60 from 71 and we're left with 11.
Bring next digit (2) of the dividend behind the 11 and repeat the process: 112 / 12

Going ahead to step 5:
When dividing 112 by 12, we get 9 with a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 2759.0
Subtracting 108 from 112 leaves us with 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 12

On to step 6:
12 can be fit into 49 4 times, resulting in a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 27594.0
If we subtract 48 from 49, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
If we divide 10 by 12, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 27594.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
When dividing 100 by 12, we get 8 with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 27594.08
The remainder is 4 after subtracting 96 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
12 goes into 40 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 27594.083
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 10:
12 goes into 40 3 times with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 27594.0833
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 27594.0833 and a remainder of 4e-05.