We're dividing 660687 by 80 
Our goal is to divide 660687 by 80.

On to step 1:
80 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 80

Let's proceed to step 2:
When dividing 66 by 80, we get 0 with a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Take the next digit (0) from the dividend and append it to 66, then repeat: 660 / 80

On to step 3:
80 can be fit into 660 8 times, resulting in a remainder of 20.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 640 from 660 leaves us with 20.
Take the next digit (6) from the dividend and append it to 20, then repeat: 206 / 80

Advancing to step 4:
When dividing 206 by 80, we get 2 with a remainder of 46.
Use 2 as the next digit of our solution. 
Result so far: 82.0
If we subtract 160 from 206, we get 46.
Include the next digit (8) from the dividend after 46, then repeat: 468 / 80

Let's proceed to step 5:
80 can be fit into 468 5 times, resulting in a remainder of 68.
Use 5 as the next digit of our solution. 
Result so far: 825.0
If we take 400 away from 468, we end up with 68.
Include the next digit (7) from the dividend after 68, then repeat: 687 / 80

Going ahead to step 6:
If we divide 687 by 80, we get 8 and a remainder of 47.
Put 8 as the next digit of the answer. 
Result so far: 8258.0
If we take 640 away from 687, we end up with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 7:
80 goes into 470 5 times with a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 8258.5
If we take 400 away from 470, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 8:
80 can be fit into 700 8 times, resulting in a remainder of 60.
Put 8 as the next digit of the answer. 
Result so far: 8258.58
Deduct 640 from 700 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.

Advancing to step 9:
80 can be fit into 600 7 times, resulting in a remainder of 40.
Use 7 as the next digit of our solution. 
Result so far: 8258.587
The remainder is 40 after subtracting 560 from 600.
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 10:
If we divide 400 by 80, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 8258.5875
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.

Let's proceed to step 11:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 8258.5875
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.

Step 12:
0 divided by 80 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 8258.5875
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.

The final result is 8258.5875 with a remainder of 0.0.