We look at the division of 65373665 by 80 
Let's see how many times 80 fits into 65373665.

On to step 1:
When dividing 6 by 80, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 80

On to step 2:
65 divided by 80 is 0 with a remainder of 65.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 65 and we're left with 65.
Bring next digit (3) of the dividend behind the 65 and repeat the process: 653 / 80

Let's proceed to step 3:
80 goes into 653 8 times with a remainder of 13.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtract 640 from 653 to get 13.
Take the next digit (7) from the dividend and append it to 13, then repeat: 137 / 80

Going ahead to step 4:
137 divided by 80 is 1 with a remainder of 57.
The number 1 becomes the next digit in our result. 
Result so far: 81.0
If we subtract 80 from 137, we get 57.
Append the next digit (3) from the dividend to 57 and continue with: 573 / 80

Let's proceed to step 5:
The number 80 fits into 573 7 times, leaving a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 817.0
Deduct 560 from 573 and we're left with 13.
Bring next digit (6) of the dividend behind the 13 and repeat the process: 136 / 80

Advancing to step 6:
80 goes into 136 1 times with a remainder of 56.
The next digit of our result is 1. 
Result so far: 8171.0
Subtract 80 from 136 to get 56.
Fetch the next digit (6) from the dividend, attach it to 56 and continue: 566 / 80

Going ahead to step 7:
80 can be fit into 566 7 times, resulting in a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 81717.0
If we take 560 away from 566, we end up with 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 80

Advancing to step 8:
80 can be fit into 65 0 times, resulting in a remainder of 65.
Put 0 as the next digit of the answer. 
Result so far: 817170.0
If we take 0 away from 65, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 9:
The number 80 fits into 650 8 times, leaving a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 817170.8
Subtracting 640 from 650 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
80 can be fit into 100 1 times, resulting in a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 817170.81
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.

On to step 11:
The number 80 fits into 200 2 times, leaving a remainder of 40.
Write down 2 as next digit of the result. 
Result so far: 817170.812
Deduct 160 from 200 and we're left 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 12:
If we divide 400 by 80, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 817170.8125
The remainder is 0 after subtracting 400 from 400.
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 13:
0 divided by 80 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 817170.8125
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.

Step 14:
80 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 817170.8125
Deduct 0 from 0 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.

The final result is 817170.8125 with a remainder of 0.0.