We divide 665946 by 80
We want to figure out the number of times 665946 can be divided by 80.

On to step 1:
6 divided by 80 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 80

Going ahead to step 2:
The number 80 fits into 66 0 times, leaving a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Bring next digit (5) of the dividend behind the 66 and repeat the process: 665 / 80

Advancing to step 3:
The number 80 fits into 665 8 times, leaving a remainder of 25.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 640 from 665, we get 25.
Fetch the next digit (9) from the dividend, attach it to 25 and continue: 259 / 80

Advancing to step 4:
When dividing 259 by 80, we get 3 with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 83.0
Subtracting 240 from 259 leaves us with 19.
Include the next digit (4) from the dividend after 19, then repeat: 194 / 80

Moving on to step 5:
80 can be fit into 194 2 times, resulting in a remainder of 34.
Record the quotient 2 as the next digit in the result. 
Result so far: 832.0
Subtracting 160 from 194 leaves us with 34.
Fetch the next digit (6) from the dividend, attach it to 34 and continue: 346 / 80

Moving on to step 6:
80 can be fit into 346 4 times, resulting in a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 8324.0
The remainder is 26 after subtracting 320 from 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 7:
80 can be fit into 260 3 times, resulting in a remainder of 20.
The number 3 becomes the next digit in our result. 
Result so far: 8324.3
Deduct 240 from 260 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
200 divided by 80 is 2 with a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 8324.32
If we take 160 away from 200, 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.

Advancing to step 9:
80 can be fit into 400 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 8324.325
Subtracting 400 from 400 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.

Moving on to step 10:
If we divide 0 by 80, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8324.325
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.

Let's proceed to step 11:
If we divide 0 by 80, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 8324.325
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.

In conclusion, the division gives 8324.325 with a balance of 0.0.