Let's divide 79918711 by 80
Let's see how many times 80 fits into 79918711.

Advancing to step 1:
When dividing 7 by 80, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 80

Going ahead to step 2:
When dividing 79 by 80, we get 0 with a remainder of 79.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 79, we get 79.
Grab the next digit (9) from the dividend, add it to 79, then carry on: 799 / 80

On to step 3:
The number 80 fits into 799 9 times, leaving a remainder of 79.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 720 away from 799, we end up with 79.
Bring next digit (1) of the dividend behind the 79 and repeat the process: 791 / 80

Going ahead to step 4:
When dividing 791 by 80, we get 9 with a remainder of 71.
Write down 9 as next digit of the result. 
Result so far: 99.0
Subtract 720 from 791 to get 71.
Grab the next digit (8) from the dividend, add it to 71, then carry on: 718 / 80

Going ahead to step 5:
718 divided by 80 is 8 with a remainder of 78.
Record the quotient 8 as the next digit in the result. 
Result so far: 998.0
If we subtract 640 from 718, we get 78.
Fetch the next digit (7) from the dividend, attach it to 78 and continue: 787 / 80

Step 6:
80 goes into 787 9 times with a remainder of 67.
Record the quotient 9 as the next digit in the result. 
Result so far: 9989.0
Subtracting 720 from 787 leaves us with 67.
Grab the next digit (1) from the dividend, add it to 67, then carry on: 671 / 80

Going ahead to step 7:
The number 80 fits into 671 8 times, leaving a remainder of 31.
Record the quotient 8 as the next digit in the result. 
Result so far: 99898.0
Deduct 640 from 671 and we're left with 31.
Take the next digit (1) from the dividend and append it to 31, then repeat: 311 / 80

Moving on to step 8:
When dividing 311 by 80, we get 3 with a remainder of 71.
The next digit of our result is 3. 
Result so far: 998983.0
The remainder is 71 after subtracting 240 from 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Let's proceed to step 9:
80 goes into 710 8 times with a remainder of 70.
Put 8 as the next digit of the answer. 
Result so far: 998983.8
Subtracting 640 from 710 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 10:
The number 80 fits into 700 8 times, leaving a remainder of 60.
Use 8 as the next digit of our solution. 
Result so far: 998983.88
Deduct 640 from 700 and we're left 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.

After the division, we end up with 998983.88 and a remainder of 0.06.