We look at the division of 579879 by 80 
Let's see how many times 80 fits into 579879.

Let's proceed to step 1:
80 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 80

Step 2:
80 goes into 57 0 times with a remainder of 57.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 57 and we're left with 57.
Fetch the next digit (9) from the dividend, attach it to 57 and continue: 579 / 80

Advancing to step 3:
If we divide 579 by 80, we get 7 and a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 19 after subtracting 560 from 579.
Grab the next digit (8) from the dividend, add it to 19, then carry on: 198 / 80

Advancing to step 4:
80 goes into 198 2 times with a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 72.0
Subtracting 160 from 198 leaves us with 38.
Append the next digit (7) from the dividend to 38 and continue with: 387 / 80

Advancing to step 5:
387 divided by 80 is 4 with a remainder of 67.
Put 4 as the next digit of the answer. 
Result so far: 724.0
Subtracting 320 from 387 leaves us with 67.
Append the next digit (9) from the dividend to 67 and continue with: 679 / 80

Moving on to step 6:
80 goes into 679 8 times with a remainder of 39.
Use 8 as the next digit of our solution. 
Result so far: 7248.0
If we subtract 640 from 679, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 7:
If we divide 390 by 80, we get 4 and a remainder of 70.
Use 4 as the next digit of our solution. 
Result so far: 7248.4
The remainder is 70 after subtracting 320 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 8:
The number 80 fits into 700 8 times, leaving a remainder of 60.
The next digit of our result is 8. 
Result so far: 7248.48
If we take 640 away from 700, we end up 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.

Advancing to step 9:
600 divided by 80 is 7 with a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 7248.487
If we take 560 away from 600, we end up 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.

Moving on to step 10:
When dividing 400 by 80, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 7248.4875
If we subtract 400 from 400, we 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.

Advancing to step 11:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 7248.4875
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.

Going ahead to step 12:
80 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 7248.4875
If we subtract 0 from 0, we 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.

After the division, we end up with 7248.4875 and a remainder of 0.0.