We look at the division of 636215 by 12 
Our goal is to divide 636215 by 12.

Advancing to step 1:
The number 12 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 12

Moving on to step 2:
12 goes into 63 5 times with a remainder of 3.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 60 from 63 leaves us with 3.
Take the next digit (6) from the dividend and append it to 3, then repeat: 36 / 12

Step 3:
The number 12 fits into 36 3 times, leaving a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 53.0
If we subtract 36 from 36, we get 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 12

Step 4:
The number 12 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 530.0
If we take 0 away from 2, we end up with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 12

Going ahead to step 5:
12 goes into 21 1 times with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 5301.0
Subtracting 12 from 21 leaves us with 9.
Take the next digit (5) from the dividend and append it to 9, then repeat: 95 / 12

Moving on to step 6:
When dividing 95 by 12, we get 7 with a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 53017.0
The remainder is 11 after subtracting 84 from 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 7:
12 goes into 110 9 times with a remainder of 2.
The next digit of our result is 9. 
Result so far: 53017.9
Subtracting 108 from 110 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
12 can be fit into 20 1 times, resulting in a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 53017.91
Deduct 12 from 20 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 9:
If we divide 80 by 12, we get 6 and a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 53017.916
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 10:
The number 12 fits into 80 6 times, leaving a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 53017.9166
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 53017.9166, with a leftover of 8e-05.