We look at the division of 17435121 by 12 
Our goal is to divide 17435121 by 12.

On to step 1:
When dividing 1 by 12, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 12

On to step 2:
12 can be fit into 17 1 times, resulting in a remainder of 5.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 12 from 17 to get 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 12

Step 3:
If we divide 54 by 12, we get 4 and a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtract 48 from 54 to get 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 12

On to step 4:
12 goes into 63 5 times with a remainder of 3.
The next digit of our result is 5. 
Result so far: 145.0
Subtract 60 from 63 to get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 12

Going ahead to step 5:
12 goes into 35 2 times with a remainder of 11.
Put 2 as the next digit of the answer. 
Result so far: 1452.0
The remainder is 11 after subtracting 24 from 35.
Fetch the next digit (1) from the dividend, attach it to 11 and continue: 111 / 12

Moving on to step 6:
When dividing 111 by 12, we get 9 with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 14529.0
If we subtract 108 from 111, we get 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 12

Going ahead to step 7:
The number 12 fits into 32 2 times, leaving a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 145292.0
The remainder is 8 after subtracting 24 from 32.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 12

Step 8:
The number 12 fits into 81 6 times, leaving a remainder of 9.
The number 6 becomes the next digit in our result. 
Result so far: 1452926.0
The remainder is 9 after subtracting 72 from 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 9:
The number 12 fits into 90 7 times, leaving a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 1452926.7
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
12 goes into 60 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 1452926.75
Deduct 60 from 60 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
12 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1452926.75
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 12:
When dividing 0 by 12, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1452926.75
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 1452926.75, and the remainder is 0.0.