646080 ÷ 8 
Let's see how many times 8 fits into 646080.

Moving on to step 1:
If we divide 6 by 8, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 8

Step 2:
If we divide 64 by 8, we get 8 and a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 8.0
The remainder is 0 after subtracting 64 from 64.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 8

On to step 3:
8 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 80.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 8

Step 4:
The number 8 fits into 60 7 times, leaving a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 807.0
Subtract 56 from 60 to get 4.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 8

Advancing to step 5:
8 goes into 48 6 times with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 8076.0
The remainder is 0 after subtracting 48 from 48.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 8

On to step 6:
If we divide 0 by 8, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 80760.0
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.

Advancing to step 7:
8 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 80760.0
If we take 0 away from 0, 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.

On to step 8:
The number 8 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 80760.0
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 quotient of the division is 80760.0, and the remainder is 0.0.