Let's divide 65517977 by 80
We're looking to find how many times 80 goes into 65517977.

Going ahead to step 1:
6 divided by 80 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 80

Step 2:
65 divided by 80 is 0 with a remainder of 65.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 65 after subtracting 0 from 65.
Include the next digit (5) from the dividend after 65, then repeat: 655 / 80

Let's proceed to step 3:
If we divide 655 by 80, we get 8 and a remainder of 15.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 640 from 655 and we're left with 15.
Append the next digit (1) from the dividend to 15 and continue with: 151 / 80

Moving on to step 4:
80 can be fit into 151 1 times, resulting in a remainder of 71.
The number 1 becomes the next digit in our result. 
Result so far: 81.0
The remainder is 71 after subtracting 80 from 151.
Fetch the next digit (7) from the dividend, attach it to 71 and continue: 717 / 80

Advancing to step 5:
When dividing 717 by 80, we get 8 with a remainder of 77.
The next digit of our result is 8. 
Result so far: 818.0
If we subtract 640 from 717, we get 77.
Bring next digit (9) of the dividend behind the 77 and repeat the process: 779 / 80

Moving on to step 6:
80 can be fit into 779 9 times, resulting in a remainder of 59.
Put 9 as the next digit of the answer. 
Result so far: 8189.0
Deduct 720 from 779 and we're left with 59.
Bring next digit (7) of the dividend behind the 59 and repeat the process: 597 / 80

Step 7:
If we divide 597 by 80, we get 7 and a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 81897.0
If we subtract 560 from 597, we get 37.
Grab the next digit (7) from the dividend, add it to 37, then carry on: 377 / 80

Advancing to step 8:
377 divided by 80 is 4 with a remainder of 57.
Put 4 as the next digit of the answer. 
Result so far: 818974.0
If we subtract 320 from 377, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 9:
If we divide 570 by 80, we get 7 and a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 818974.7
Subtract 560 from 570 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
100 divided by 80 is 1 with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 818974.71
If we take 80 away from 100, we end up 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.

Let's proceed to step 11:
200 divided by 80 is 2 with a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 818974.712
If we subtract 160 from 200, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 12:
400 divided by 80 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 818974.7125
Subtract 400 from 400 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.

Step 13:
80 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 818974.7125
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.

Moving on to step 14:
When dividing 0 by 80, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 818974.7125
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.

The quotient of the division is 818974.7125, and the remainder is 0.0.