Let's divide 668251 by 80
We're looking to find how many times 80 goes into 668251.

Moving on to step 1:
The number 80 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 80

Moving on to step 2:
When dividing 66 by 80, we get 0 with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Bring next digit (8) of the dividend behind the 66 and repeat the process: 668 / 80

Moving on to step 3:
80 can be fit into 668 8 times, resulting in a remainder of 28.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 640 from 668, we get 28.
Include the next digit (2) from the dividend after 28, then repeat: 282 / 80

Let's proceed to step 4:
80 goes into 282 3 times with a remainder of 42.
The next digit of our result is 3. 
Result so far: 83.0
If we subtract 240 from 282, we get 42.
Take the next digit (5) from the dividend and append it to 42, then repeat: 425 / 80

Let's proceed to step 5:
80 can be fit into 425 5 times, resulting in a remainder of 25.
The next digit of our result is 5. 
Result so far: 835.0
Deduct 400 from 425 and we're left with 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 80

Step 6:
251 divided by 80 is 3 with a remainder of 11.
The next digit of our result is 3. 
Result so far: 8353.0
Subtract 240 from 251 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
110 divided by 80 is 1 with a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 8353.1
Subtracting 80 from 110 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
80 goes into 300 3 times with a remainder of 60.
Record the quotient 3 as the next digit in the result. 
Result so far: 8353.13
If we subtract 240 from 300, we get 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:
The number 80 fits into 600 7 times, leaving a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 8353.137
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.

On to step 10:
If we divide 400 by 80, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 8353.1375
Subtract 400 from 400 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.

Going ahead to step 11:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 8353.1375
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.

Moving on to step 12:
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: 8353.1375
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.

Our division results in 8353.1375 with a remaining 0.0.