We're dividing 878136 by 85 
Let's see how many times 85 fits into 878136.

Step 1:
If we divide 8 by 85, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 85

Step 2:
When dividing 87 by 85, we get 1 with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 85 from 87, we get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 85

Going ahead to step 3:
When dividing 28 by 85, we get 0 with a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 28, we end up with 28.
Take the next digit (1) from the dividend and append it to 28, then repeat: 281 / 85

Step 4:
85 goes into 281 3 times with a remainder of 26.
Put 3 as the next digit of the answer. 
Result so far: 103.0
Deduct 255 from 281 and we're left with 26.
Take the next digit (3) from the dividend and append it to 26, then repeat: 263 / 85

On to step 5:
263 divided by 85 is 3 with a remainder of 8.
Write down 3 as next digit of the result. 
Result so far: 1033.0
Subtract 255 from 263 to get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 85

Advancing to step 6:
When dividing 86 by 85, we get 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 10331.0
If we take 85 away from 86, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
When dividing 10 by 85, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 10331.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
85 can be fit into 100 1 times, resulting in a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 10331.01
If we subtract 85 from 100, 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.

On to step 9:
The number 85 fits into 150 1 times, leaving a remainder of 65.
The number 1 becomes the next digit in our result. 
Result so far: 10331.011
Subtract 85 from 150 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Our division results in 10331.011 with a remaining 0.0065.