857372 ÷ 12 
We're looking to find how many times 12 goes into 857372.

Advancing to step 1:
12 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 12

Let's proceed to step 2:
12 can be fit into 85 7 times, resulting in a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 84 from 85 to get 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 12

Advancing to step 3:
When dividing 17 by 12, we get 1 with a remainder of 5.
The next digit of our result is 1. 
Result so far: 71.0
Subtracting 12 from 17 leaves us with 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 12

Moving on to step 4:
12 goes into 53 4 times with a remainder of 5.
The next digit of our result is 4. 
Result so far: 714.0
Deduct 48 from 53 and we're left with 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 12

Moving on to step 5:
The number 12 fits into 57 4 times, leaving a remainder of 9.
The number 4 becomes the next digit in our result. 
Result so far: 7144.0
If we subtract 48 from 57, we get 9.
Append the next digit (2) from the dividend to 9 and continue with: 92 / 12

Moving on to step 6:
92 divided by 12 is 7 with a remainder of 8.
Write down 7 as next digit of the result. 
Result so far: 71447.0
If we take 84 away from 92, 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.

Going ahead to step 7:
12 goes into 80 6 times with a remainder of 8.
The next digit of our result is 6. 
Result so far: 71447.6
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.

Moving on to step 8:
The number 12 fits into 80 6 times, leaving a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 71447.66
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.

In conclusion, the division gives 71447.66 with a balance of 0.008.