We look at the division of 68479405 by 80 
We want to figure out the number of times 68479405 can be divided by 80.

Moving on to step 1:
If we divide 6 by 80, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 80

On to step 2:
When dividing 68 by 80, we get 0 with a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 68 and we're left with 68.
Grab the next digit (4) from the dividend, add it to 68, then carry on: 684 / 80

On to step 3:
The number 80 fits into 684 8 times, leaving a remainder of 44.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 640 from 684 leaves us with 44.
Append the next digit (7) from the dividend to 44 and continue with: 447 / 80

Going ahead to step 4:
If we divide 447 by 80, we get 5 and a remainder of 47.
The next digit of our result is 5. 
Result so far: 85.0
The remainder is 47 after subtracting 400 from 447.
Bring next digit (9) of the dividend behind the 47 and repeat the process: 479 / 80

Advancing to step 5:
80 goes into 479 5 times with a remainder of 79.
The number 5 becomes the next digit in our result. 
Result so far: 855.0
Subtract 400 from 479 to get 79.
Include the next digit (4) from the dividend after 79, then repeat: 794 / 80

Advancing to step 6:
The number 80 fits into 794 9 times, leaving a remainder of 74.
Write down 9 as next digit of the result. 
Result so far: 8559.0
If we take 720 away from 794, we end up with 74.
Include the next digit (0) from the dividend after 74, then repeat: 740 / 80

Going ahead to step 7:
When dividing 740 by 80, we get 9 with a remainder of 20.
Use 9 as the next digit of our solution. 
Result so far: 85599.0
Subtracting 720 from 740 leaves us with 20.
Fetch the next digit (5) from the dividend, attach it to 20 and continue: 205 / 80

Advancing to step 8:
If we divide 205 by 80, we get 2 and a remainder of 45.
The next digit of our result is 2. 
Result so far: 855992.0
If we subtract 160 from 205, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 9:
The number 80 fits into 450 5 times, leaving a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 855992.5
Subtract 400 from 450 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
The number 80 fits into 500 6 times, leaving a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 855992.56
Subtracting 480 from 500 leaves us 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.

On to step 11:
200 divided by 80 is 2 with a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 855992.562
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.

Moving on to step 12:
400 divided by 80 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 855992.5625
Subtracting 400 from 400 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.

Advancing to step 13:
80 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 855992.5625
If we take 0 away from 0, we end up 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.

On to step 14:
0 divided by 80 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 855992.5625
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 855992.5625 with a remaining 0.0.