We're dividing 591172 by 80 
We want to figure out the number of times 591172 can be divided by 80.

Step 1:
80 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (9) of the dividend behind the 5 and repeat the process: 59 / 80

Step 2:
59 divided by 80 is 0 with a remainder of 59.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 59 after subtracting 0 from 59.
Append the next digit (1) from the dividend to 59 and continue with: 591 / 80

Going ahead to step 3:
When dividing 591 by 80, we get 7 with a remainder of 31.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 560 away from 591, we end up with 31.
Append the next digit (1) from the dividend to 31 and continue with: 311 / 80

Step 4:
When dividing 311 by 80, we get 3 with a remainder of 71.
The number 3 becomes the next digit in our result. 
Result so far: 73.0
The remainder is 71 after subtracting 240 from 311.
Grab the next digit (7) from the dividend, add it to 71, then carry on: 717 / 80

On to step 5:
When dividing 717 by 80, we get 8 with a remainder of 77.
Record the quotient 8 as the next digit in the result. 
Result so far: 738.0
If we take 640 away from 717, we end up with 77.
Bring next digit (2) of the dividend behind the 77 and repeat the process: 772 / 80

Let's proceed to step 6:
80 goes into 772 9 times with a remainder of 52.
The next digit of our result is 9. 
Result so far: 7389.0
Subtract 720 from 772 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 7:
520 divided by 80 is 6 with a remainder of 40.
Write down 6 as next digit of the result. 
Result so far: 7389.6
Deduct 480 from 520 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.

Going ahead to step 8:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 7389.65
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 9:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 7389.65
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.

Advancing to step 10:
0 divided by 80 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 7389.65
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 7389.65 with a remainder of 0.0.