We look at the division of 799865 by 80 
We want to figure out the number of times 799865 can be divided by 80.

On to step 1:
The number 80 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 80

Let's proceed to step 2:
79 divided by 80 is 0 with a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 79 to get 79.
Bring next digit (9) of the dividend behind the 79 and repeat the process: 799 / 80

Step 3:
80 can be fit into 799 9 times, resulting in a remainder of 79.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 720 from 799, we get 79.
Bring next digit (8) of the dividend behind the 79 and repeat the process: 798 / 80

Step 4:
798 divided by 80 is 9 with a remainder of 78.
The next digit of our result is 9. 
Result so far: 99.0
Deduct 720 from 798 and we're left with 78.
Include the next digit (6) from the dividend after 78, then repeat: 786 / 80

On to step 5:
786 divided by 80 is 9 with a remainder of 66.
Record the quotient 9 as the next digit in the result. 
Result so far: 999.0
If we subtract 720 from 786, we get 66.
Bring next digit (5) of the dividend behind the 66 and repeat the process: 665 / 80

Step 6:
80 goes into 665 8 times with a remainder of 25.
Use 8 as the next digit of our solution. 
Result so far: 9998.0
If we take 640 away from 665, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 7:
250 divided by 80 is 3 with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 9998.3
The remainder is 10 after subtracting 240 from 250.
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:
80 goes into 100 1 times with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 9998.31
Deduct 80 from 100 and we're left 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.

Advancing to step 9:
80 can be fit into 200 2 times, resulting in a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 9998.312
If we take 160 away from 200, 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.

On to step 10:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 9998.3125
Deduct 400 from 400 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
0 divided by 80 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 9998.3125
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 12:
80 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 9998.3125
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.

After the division, we end up with 9998.3125 and a remainder of 0.0.