620160 ÷ 80 
We want to figure out the number of times 620160 can be divided by 80.

On to step 1:
6 divided by 80 is 0 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.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 80

Moving on to step 2:
The number 80 fits into 62 0 times, leaving a remainder of 62.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 62 to get 62.
Fetch the next digit (0) from the dividend, attach it to 62 and continue: 620 / 80

Moving on to step 3:
The number 80 fits into 620 7 times, leaving a remainder of 60.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 560 from 620 and we're left with 60.
Grab the next digit (1) from the dividend, add it to 60, then carry on: 601 / 80

On to step 4:
The number 80 fits into 601 7 times, leaving a remainder of 41.
Record the quotient 7 as the next digit in the result. 
Result so far: 77.0
Subtract 560 from 601 to get 41.
Take the next digit (6) from the dividend and append it to 41, then repeat: 416 / 80

Let's proceed to step 5:
80 goes into 416 5 times with a remainder of 16.
Write down 5 as next digit of the result. 
Result so far: 775.0
The remainder is 16 after subtracting 400 from 416.
Append the next digit (0) from the dividend to 16 and continue with: 160 / 80

On to step 6:
80 goes into 160 2 times with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 7752.0
If we subtract 160 from 160, 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.

Going ahead to step 7:
When dividing 0 by 80, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 7752.0
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.

Let's proceed to step 8:
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: 7752.0
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.

Our division results in 7752.0 with a remaining 0.0.