856521 divided by 85 
Our goal is to divide 856521 by 85.

Going ahead to step 1:
8 divided by 85 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 85

Moving on to step 2:
The number 85 fits into 85 1 times, leaving a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 85 from 85 to get 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 85

Moving on to step 3:
If we divide 6 by 85, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 10.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 85

Let's proceed to step 4:
The number 85 fits into 65 0 times, leaving a remainder of 65.
Use 0 as the next digit of our solution. 
Result so far: 100.0
If we subtract 0 from 65, we get 65.
Include the next digit (2) from the dividend after 65, then repeat: 652 / 85

Step 5:
The number 85 fits into 652 7 times, leaving a remainder of 57.
Write down 7 as next digit of the result. 
Result so far: 1007.0
If we take 595 away from 652, we end up with 57.
Append the next digit (1) from the dividend to 57 and continue with: 571 / 85

Step 6:
571 divided by 85 is 6 with a remainder of 61.
Put 6 as the next digit of the answer. 
Result so far: 10076.0
Subtract 510 from 571 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 7:
When dividing 610 by 85, we get 7 with a remainder of 15.
Record the quotient 7 as the next digit in the result. 
Result so far: 10076.7
If we subtract 595 from 610, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 8:
85 goes into 150 1 times with a remainder of 65.
Put 1 as the next digit of the answer. 
Result so far: 10076.71
If we take 85 away from 150, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 9:
When dividing 650 by 85, we get 7 with a remainder of 55.
Write down 7 as next digit of the result. 
Result so far: 10076.717
Deduct 595 from 650 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 10:
If we divide 550 by 85, we get 6 and a remainder of 40.
Write down 6 as next digit of the result. 
Result so far: 10076.7176
The remainder is 40 after subtracting 510 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
85 goes into 400 4 times with a remainder of 60.
Write down 4 as next digit of the result. 
Result so far: 10076.71764
If we subtract 340 from 400, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 12:
If we divide 600 by 85, we get 7 and a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 10076.717647
The remainder is 5 after subtracting 595 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 13:
85 can be fit into 50 0 times, resulting in a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 10076.717647
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 14:
85 goes into 500 5 times with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 10076.71764705
If we subtract 425 from 500, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

The final outcome is 10076.71764705, with a leftover of 7.5e-08.