We look at the division of 878902 by 80 
We're looking to find how many times 80 goes into 878902.

On to step 1:
80 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
Subtract 0 from 8 to get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 80

On to step 2:
The number 80 fits into 87 1 times, leaving a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 7 after subtracting 80 from 87.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 80

Moving on to step 3:
If we divide 78 by 80, we get 0 and a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtract 0 from 78 to get 78.
Fetch the next digit (9) from the dividend, attach it to 78 and continue: 789 / 80

Moving on to step 4:
80 goes into 789 9 times with a remainder of 69.
The next digit of our result is 9. 
Result so far: 109.0
Subtract 720 from 789 to get 69.
Append the next digit (0) from the dividend to 69 and continue with: 690 / 80

Advancing to step 5:
690 divided by 80 is 8 with a remainder of 50.
Use 8 as the next digit of our solution. 
Result so far: 1098.0
Deduct 640 from 690 and we're left with 50.
Bring next digit (2) of the dividend behind the 50 and repeat the process: 502 / 80

On to step 6:
If we divide 502 by 80, we get 6 and a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 10986.0
If we take 480 away from 502, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 7:
If we divide 220 by 80, we get 2 and a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 10986.2
Subtracting 160 from 220 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 8:
600 divided by 80 is 7 with a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 10986.27
If we take 560 away from 600, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
If we divide 400 by 80, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 10986.275
Subtract 400 from 400 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
80 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 10986.275
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
80 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10986.275
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 10986.275 with a balance of 0.0.