We divide 827991 by 80
We're looking to find how many times 80 goes into 827991.

Advancing to step 1:
80 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 80

Advancing to step 2:
82 divided by 80 is 1 with a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 80 from 82, we get 2.
Grab the next digit (7) from the dividend, add it to 2, then carry on: 27 / 80

Advancing to step 3:
80 can be fit into 27 0 times, resulting in a remainder of 27.
The next digit of our result is 0. 
Result so far: 10.0
Deduct 0 from 27 and we're left with 27.
Fetch the next digit (9) from the dividend, attach it to 27 and continue: 279 / 80

Moving on to step 4:
80 goes into 279 3 times with a remainder of 39.
The next digit of our result is 3. 
Result so far: 103.0
Subtract 240 from 279 to get 39.
Grab the next digit (9) from the dividend, add it to 39, then carry on: 399 / 80

Let's proceed to step 5:
80 goes into 399 4 times with a remainder of 79.
Put 4 as the next digit of the answer. 
Result so far: 1034.0
Subtract 320 from 399 to get 79.
Fetch the next digit (1) from the dividend, attach it to 79 and continue: 791 / 80

On to step 6:
If we divide 791 by 80, we get 9 and a remainder of 71.
Put 9 as the next digit of the answer. 
Result so far: 10349.0
If we take 720 away from 791, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 7:
The number 80 fits into 710 8 times, leaving a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 10349.8
The remainder is 70 after subtracting 640 from 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 8:
80 can be fit into 700 8 times, resulting in a remainder of 60.
Record the quotient 8 as the next digit in the result. 
Result so far: 10349.88
The remainder is 60 after subtracting 640 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 10349.88, with a leftover of 0.06.