Let's divide 648889 by 80
We want to divide 648889 by 80.

Step 1:
80 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 80

Advancing to step 2:
64 divided by 80 is 0 with a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Include the next digit (8) from the dividend after 64, then repeat: 648 / 80

Going ahead to step 3:
80 goes into 648 8 times with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 8 after subtracting 640 from 648.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 80

Going ahead to step 4:
When dividing 88 by 80, we get 1 with a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 81.0
The remainder is 8 after subtracting 80 from 88.
Bring next digit (8) of the dividend behind the 8 and repeat the process: 88 / 80

Moving on to step 5:
88 divided by 80 is 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 811.0
Subtract 80 from 88 to get 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 80

Step 6:
When dividing 89 by 80, we get 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 8111.0
Deduct 80 from 89 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
If we divide 90 by 80, we get 1 and a remainder of 10.
The next digit of our result is 1. 
Result so far: 8111.1
If we subtract 80 from 90, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
80 goes into 100 1 times with a remainder of 20.
Write down 1 as next digit of the result. 
Result so far: 8111.11
If we subtract 80 from 100, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 8111.11 and a remainder of 0.02.