We look at the division of 80797815 by 516 
We want to divide 80797815 by 516.

Step 1:
516 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 516

Moving on to step 2:
516 goes into 80 0 times with a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 80 after subtracting 0 from 80.
Include the next digit (7) from the dividend after 80, then repeat: 807 / 516

Going ahead to step 3:
If we divide 807 by 516, we get 1 and a remainder of 291.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 516 from 807 leaves us with 291.
Append the next digit (9) from the dividend to 291 and continue with: 2919 / 516

Step 4:
516 can be fit into 2919 5 times, resulting in a remainder of 339.
The next digit of our result is 5. 
Result so far: 15.0
If we take 2580 away from 2919, we end up with 339.
Append the next digit (7) from the dividend to 339 and continue with: 3397 / 516

Advancing to step 5:
3397 divided by 516 is 6 with a remainder of 301.
The number 6 becomes the next digit in our result. 
Result so far: 156.0
Deduct 3096 from 3397 and we're left with 301.
Bring next digit (8) of the dividend behind the 301 and repeat the process: 3018 / 516

Step 6:
If we divide 3018 by 516, we get 5 and a remainder of 438.
Put 5 as the next digit of the answer. 
Result so far: 1565.0
The remainder is 438 after subtracting 2580 from 3018.
Fetch the next digit (1) from the dividend, attach it to 438 and continue: 4381 / 516

Going ahead to step 7:
If we divide 4381 by 516, we get 8 and a remainder of 253.
The next digit of our result is 8. 
Result so far: 15658.0
Subtract 4128 from 4381 to get 253.
Grab the next digit (5) from the dividend, add it to 253, then carry on: 2535 / 516

Going ahead to step 8:
When dividing 2535 by 516, we get 4 with a remainder of 471.
Record the quotient 4 as the next digit in the result. 
Result so far: 156584.0
Subtracting 2064 from 2535 leaves us with 471.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4710, and continue the process.

Let's proceed to step 9:
516 can be fit into 4710 9 times, resulting in a remainder of 66.
Put 9 as the next digit of the answer. 
Result so far: 156584.9
If we subtract 4644 from 4710, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 10:
If we divide 660 by 516, we get 1 and a remainder of 144.
The next digit of our result is 1. 
Result so far: 156584.91
If we subtract 516 from 660, we get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

On to step 11:
When dividing 1440 by 516, we get 2 with a remainder of 408.
The number 2 becomes the next digit in our result. 
Result so far: 156584.912
If we take 1032 away from 1440, we end up with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Step 12:
516 can be fit into 4080 7 times, resulting in a remainder of 468.
The number 7 becomes the next digit in our result. 
Result so far: 156584.9127
If we take 3612 away from 4080, we end up with 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Advancing to step 13:
The number 516 fits into 4680 9 times, leaving a remainder of 36.
The number 9 becomes the next digit in our result. 
Result so far: 156584.91279
Subtract 4644 from 4680 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 14:
516 goes into 360 0 times with a remainder of 360.
Write down 0 as next digit of the result. 
Result so far: 156584.91279
Subtract 0 from 360 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Step 15:
If we divide 3600 by 516, we get 6 and a remainder of 504.
Use 6 as the next digit of our solution. 
Result so far: 156584.9127906
Subtracting 3096 from 3600 leaves us with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

On to step 16:
The number 516 fits into 5040 9 times, leaving a remainder of 396.
The next digit of our result is 9. 
Result so far: 156584.91279069
Subtract 4644 from 5040 to get 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

After the division, we end up with 156584.91279069 and a remainder of 3.96e-07.