515918 divided by 80 
We're looking to find how many times 80 goes into 515918.

Going ahead to step 1:
5 divided by 80 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 80

On to step 2:
The number 80 fits into 51 0 times, leaving a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Fetch the next digit (5) from the dividend, attach it to 51 and continue: 515 / 80

Let's proceed to step 3:
515 divided by 80 is 6 with a remainder of 35.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 35 after subtracting 480 from 515.
Bring next digit (9) of the dividend behind the 35 and repeat the process: 359 / 80

Advancing to step 4:
The number 80 fits into 359 4 times, leaving a remainder of 39.
The number 4 becomes the next digit in our result. 
Result so far: 64.0
If we take 320 away from 359, we end up with 39.
Include the next digit (1) from the dividend after 39, then repeat: 391 / 80

Step 5:
80 goes into 391 4 times with a remainder of 71.
Write down 4 as next digit of the result. 
Result so far: 644.0
Deduct 320 from 391 and we're left with 71.
Take the next digit (8) from the dividend and append it to 71, then repeat: 718 / 80

On to step 6:
If we divide 718 by 80, we get 8 and a remainder of 78.
The number 8 becomes the next digit in our result. 
Result so far: 6448.0
The remainder is 78 after subtracting 640 from 718.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 7:
When dividing 780 by 80, we get 9 with a remainder of 60.
The number 9 becomes the next digit in our result. 
Result so far: 6448.9
Deduct 720 from 780 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.

Step 8:
The number 80 fits into 600 7 times, leaving a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 6448.97
Subtract 560 from 600 to 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.

Step 9:
80 goes into 400 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 6448.975
If we take 400 away from 400, 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.

Going ahead to step 10:
80 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 6448.975
Subtract 0 from 0 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.

Let's proceed to step 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 6448.975
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.

The final outcome is 6448.975, with a leftover of 0.0.