We're dividing 856291 by 12 
We want to divide 856291 by 12.

On to step 1:
12 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 12

Moving on to step 2:
12 can be fit into 85 7 times, resulting in a remainder of 1.
The next digit of our result is 7. 
Result so far: 7.0
The remainder is 1 after subtracting 84 from 85.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 12

Let's proceed to step 3:
If we divide 16 by 12, we get 1 and a remainder of 4.
The next digit of our result is 1. 
Result so far: 71.0
Subtract 12 from 16 to get 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 12

Going ahead to step 4:
When dividing 42 by 12, we get 3 with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 713.0
Subtract 36 from 42 to get 6.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 12

Let's proceed to step 5:
12 can be fit into 69 5 times, resulting in a remainder of 9.
Write down 5 as next digit of the result. 
Result so far: 7135.0
If we take 60 away from 69, we end up with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 12

Going ahead to step 6:
The number 12 fits into 91 7 times, leaving a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 71357.0
The remainder is 7 after subtracting 84 from 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
The number 12 fits into 70 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 71357.5
The remainder is 10 after subtracting 60 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
The number 12 fits into 100 8 times, leaving a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 71357.58
Deduct 96 from 100 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.

Moving on to step 9:
If we divide 40 by 12, we get 3 and a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 71357.583
If we take 36 away from 40, we end up 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.

Let's proceed to step 10:
12 can be fit into 40 3 times, resulting in a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 71357.5833
Subtracting 36 from 40 leaves us 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.

The final outcome is 71357.5833, with a leftover of 4e-05.