31205235 ÷ 648 
We're looking to find how many times 648 goes into 31205235.

Advancing to step 1:
The number 648 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 648

Going ahead to step 2:
31 divided by 648 is 0 with a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Append the next digit (2) from the dividend to 31 and continue with: 312 / 648

Going ahead to step 3:
If we divide 312 by 648, we get 0 and a remainder of 312.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 312 and we're left with 312.
Take the next digit (0) from the dividend and append it to 312, then repeat: 3120 / 648

Let's proceed to step 4:
648 goes into 3120 4 times with a remainder of 528.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 2592 from 3120, we get 528.
Fetch the next digit (5) from the dividend, attach it to 528 and continue: 5285 / 648

Moving on to step 5:
648 can be fit into 5285 8 times, resulting in a remainder of 101.
The next digit of our result is 8. 
Result so far: 48.0
If we take 5184 away from 5285, we end up with 101.
Grab the next digit (2) from the dividend, add it to 101, then carry on: 1012 / 648

Let's proceed to step 6:
648 goes into 1012 1 times with a remainder of 364.
The number 1 becomes the next digit in our result. 
Result so far: 481.0
If we take 648 away from 1012, we end up with 364.
Bring next digit (3) of the dividend behind the 364 and repeat the process: 3643 / 648

Let's proceed to step 7:
If we divide 3643 by 648, we get 5 and a remainder of 403.
Write down 5 as next digit of the result. 
Result so far: 4815.0
Subtracting 3240 from 3643 leaves us with 403.
Take the next digit (5) from the dividend and append it to 403, then repeat: 4035 / 648

Moving on to step 8:
When dividing 4035 by 648, we get 6 with a remainder of 147.
Write down 6 as next digit of the result. 
Result so far: 48156.0
Subtracting 3888 from 4035 leaves us with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Advancing to step 9:
648 can be fit into 1470 2 times, resulting in a remainder of 174.
The next digit of our result is 2. 
Result so far: 48156.2
Subtracting 1296 from 1470 leaves us with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Moving on to step 10:
648 goes into 1740 2 times with a remainder of 444.
Use 2 as the next digit of our solution. 
Result so far: 48156.22
The remainder is 444 after subtracting 1296 from 1740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

The quotient of the division is 48156.22, and the remainder is 0.444.