878842 ÷ 81 
We want to figure out the number of times 878842 can be divided by 81.

Advancing to step 1:
81 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 81

Moving on to step 2:
87 divided by 81 is 1 with a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 81 from 87 to get 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 81

Let's proceed to step 3:
81 goes into 68 0 times with a remainder of 68.
Use 0 as the next digit of our solution. 
Result so far: 10.0
The remainder is 68 after subtracting 0 from 68.
Append the next digit (8) from the dividend to 68 and continue with: 688 / 81

Step 4:
When dividing 688 by 81, we get 8 with a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 108.0
The remainder is 40 after subtracting 648 from 688.
Include the next digit (4) from the dividend after 40, then repeat: 404 / 81

On to step 5:
If we divide 404 by 81, we get 4 and a remainder of 80.
Put 4 as the next digit of the answer. 
Result so far: 1084.0
If we subtract 324 from 404, we get 80.
Include the next digit (2) from the dividend after 80, then repeat: 802 / 81

Let's proceed to step 6:
If we divide 802 by 81, we get 9 and a remainder of 73.
The next digit of our result is 9. 
Result so far: 10849.0
The remainder is 73 after subtracting 729 from 802.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 7:
When dividing 730 by 81, we get 9 with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 10849.9
The remainder is 1 after subtracting 729 from 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 8:
The number 81 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 10849.9
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
When dividing 100 by 81, we get 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 10849.901
The remainder is 19 after subtracting 81 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 10:
81 goes into 190 2 times with a remainder of 28.
The next digit of our result is 2. 
Result so far: 10849.9012
If we take 162 away from 190, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 11:
81 goes into 280 3 times with a remainder of 37.
Write down 3 as next digit of the result. 
Result so far: 10849.90123
If we take 243 away from 280, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 12:
81 goes into 370 4 times with a remainder of 46.
Write down 4 as next digit of the result. 
Result so far: 10849.901234
If we subtract 324 from 370, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 13:
The number 81 fits into 460 5 times, leaving a remainder of 55.
The next digit of our result is 5. 
Result so far: 10849.9012345
Subtract 405 from 460 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 14:
550 divided by 81 is 6 with a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 10849.90123456
Subtracting 486 from 550 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final result is 10849.90123456 with a remainder of 6.4e-08.