We look at the division of 860559 by 85 
We want to figure out the number of times 860559 can be divided by 85.

Advancing to step 1:
8 divided by 85 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 85

On to step 2:
When dividing 86 by 85, we get 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 85 from 86 leaves us with 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 85

Advancing to step 3:
10 divided by 85 is 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 10, we end up with 10.
Grab the next digit (5) from the dividend, add it to 10, then carry on: 105 / 85

Step 4:
When dividing 105 by 85, we get 1 with a remainder of 20.
The next digit of our result is 1. 
Result so far: 101.0
Deduct 85 from 105 and we're left with 20.
Fetch the next digit (5) from the dividend, attach it to 20 and continue: 205 / 85

Step 5:
When dividing 205 by 85, we get 2 with a remainder of 35.
The next digit of our result is 2. 
Result so far: 1012.0
If we subtract 170 from 205, we get 35.
Include the next digit (9) from the dividend after 35, then repeat: 359 / 85

Going ahead to step 6:
359 divided by 85 is 4 with a remainder of 19.
The next digit of our result is 4. 
Result so far: 10124.0
The remainder is 19 after subtracting 340 from 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 7:
85 goes into 190 2 times with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 10124.2
If we take 170 away from 190, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
85 goes into 200 2 times with a remainder of 30.
The number 2 becomes the next digit in our result. 
Result so far: 10124.22
Deduct 170 from 200 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Our division results in 10124.22 with a remaining 0.03.