648489 ÷ 31 
Our goal is to divide 648489 by 31.

Going ahead to step 1:
If we divide 6 by 31, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 31

Advancing to step 2:
The number 31 fits into 64 2 times, leaving a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 62 from 64, we get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 31

On to step 3:
When dividing 28 by 31, we get 0 with a remainder of 28.
The next digit of our result is 0. 
Result so far: 20.0
Subtract 0 from 28 to get 28.
Include the next digit (4) from the dividend after 28, then repeat: 284 / 31

On to step 4:
284 divided by 31 is 9 with a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 209.0
Subtracting 279 from 284 leaves us with 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 31

Let's proceed to step 5:
58 divided by 31 is 1 with a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 2091.0
Subtract 31 from 58 to get 27.
Fetch the next digit (9) from the dividend, attach it to 27 and continue: 279 / 31

Advancing to step 6:
279 divided by 31 is 9 with a remainder of 0.
The next digit of our result is 9. 
Result so far: 20919.0
If we subtract 279 from 279, 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.

Step 7:
When dividing 0 by 31, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 20919.0
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.

Going ahead to step 8:
31 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 20919.0
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.

Our division results in 20919.0 with a remaining 0.0.