We look at the division of 636920 by 12 
We're looking to find how many times 12 goes into 636920.

Advancing to step 1:
12 goes into 6 0 times with 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.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 12

Advancing to step 2:
12 can be fit into 63 5 times, resulting in a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtracting 60 from 63 leaves us with 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 12

Step 3:
The number 12 fits into 36 3 times, leaving a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
If we subtract 36 from 36, we get 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 12

Step 4:
9 divided by 12 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 530.0
Subtract 0 from 9 to get 9.
Fetch the next digit (2) from the dividend, attach it to 9 and continue: 92 / 12

Advancing to step 5:
When dividing 92 by 12, we get 7 with a remainder of 8.
The next digit of our result is 7. 
Result so far: 5307.0
If we subtract 84 from 92, we get 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 12

Going ahead to step 6:
If we divide 80 by 12, we get 6 and a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 53076.0
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.

Advancing to step 7:
12 goes into 80 6 times with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 53076.6
Subtracting 72 from 80 leaves us 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 8:
When dividing 80 by 12, we get 6 with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 53076.66
Subtract 72 from 80 to get 8.
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 53076.66, with a leftover of 0.008.