Let's divide 25096102 by 648
We want to figure out the number of times 25096102 can be divided by 648.

On to step 1:
When dividing 2 by 648, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 648

On to step 2:
648 can be fit into 25 0 times, resulting in a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 25 leaves us with 25.
Bring next digit (0) of the dividend behind the 25 and repeat the process: 250 / 648

Step 3:
648 goes into 250 0 times with a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 250 after subtracting 0 from 250.
Include the next digit (9) from the dividend after 250, then repeat: 2509 / 648

Going ahead to step 4:
2509 divided by 648 is 3 with a remainder of 565.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 565 after subtracting 1944 from 2509.
Bring next digit (6) of the dividend behind the 565 and repeat the process: 5656 / 648

Step 5:
When dividing 5656 by 648, we get 8 with a remainder of 472.
Use 8 as the next digit of our solution. 
Result so far: 38.0
If we subtract 5184 from 5656, we get 472.
Append the next digit (1) from the dividend to 472 and continue with: 4721 / 648

Going ahead to step 6:
The number 648 fits into 4721 7 times, leaving a remainder of 185.
The next digit of our result is 7. 
Result so far: 387.0
Subtract 4536 from 4721 to get 185.
Include the next digit (0) from the dividend after 185, then repeat: 1850 / 648

On to step 7:
If we divide 1850 by 648, we get 2 and a remainder of 554.
The next digit of our result is 2. 
Result so far: 3872.0
Subtracting 1296 from 1850 leaves us with 554.
Take the next digit (2) from the dividend and append it to 554, then repeat: 5542 / 648

Moving on to step 8:
The number 648 fits into 5542 8 times, leaving a remainder of 358.
The number 8 becomes the next digit in our result. 
Result so far: 38728.0
The remainder is 358 after subtracting 5184 from 5542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Going ahead to step 9:
648 can be fit into 3580 5 times, resulting in a remainder of 340.
The number 5 becomes the next digit in our result. 
Result so far: 38728.5
Subtracting 3240 from 3580 leaves us with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Moving on to step 10:
648 goes into 3400 5 times with a remainder of 160.
Use 5 as the next digit of our solution. 
Result so far: 38728.55
Subtracting 3240 from 3400 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

The final result is 38728.55 with a remainder of 0.16.