Let's divide 25109738 by 648
Let's see how many times 648 fits into 25109738.

Moving on to step 1:
The number 648 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 648

Going ahead to step 2:
25 divided by 648 is 0 with a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 25 to get 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 648

Going ahead to step 3:
When dividing 251 by 648, we get 0 with a remainder of 251.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 251, we get 251.
Include the next digit (0) from the dividend after 251, then repeat: 2510 / 648

On to step 4:
2510 divided by 648 is 3 with a remainder of 566.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 566 after subtracting 1944 from 2510.
Append the next digit (9) from the dividend to 566 and continue with: 5669 / 648

Moving on to step 5:
The number 648 fits into 5669 8 times, leaving a remainder of 485.
Use 8 as the next digit of our solution. 
Result so far: 38.0
If we subtract 5184 from 5669, we get 485.
Bring next digit (7) of the dividend behind the 485 and repeat the process: 4857 / 648

Moving on to step 6:
If we divide 4857 by 648, we get 7 and a remainder of 321.
Use 7 as the next digit of our solution. 
Result so far: 387.0
Subtracting 4536 from 4857 leaves us with 321.
Take the next digit (3) from the dividend and append it to 321, then repeat: 3213 / 648

Step 7:
3213 divided by 648 is 4 with a remainder of 621.
Use 4 as the next digit of our solution. 
Result so far: 3874.0
If we subtract 2592 from 3213, we get 621.
Include the next digit (8) from the dividend after 621, then repeat: 6218 / 648

Going ahead to step 8:
When dividing 6218 by 648, we get 9 with a remainder of 386.
Use 9 as the next digit of our solution. 
Result so far: 38749.0
Subtracting 5832 from 6218 leaves us with 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Let's proceed to step 9:
The number 648 fits into 3860 5 times, leaving a remainder of 620.
Record the quotient 5 as the next digit in the result. 
Result so far: 38749.5
If we subtract 3240 from 3860, we get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 10:
648 can be fit into 6200 9 times, resulting in a remainder of 368.
The next digit of our result is 9. 
Result so far: 38749.59
Subtract 5832 from 6200 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Step 11:
The number 648 fits into 3680 5 times, leaving a remainder of 440.
Use 5 as the next digit of our solution. 
Result so far: 38749.595
Deduct 3240 from 3680 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Let's proceed to step 12:
The number 648 fits into 4400 6 times, leaving a remainder of 512.
The number 6 becomes the next digit in our result. 
Result so far: 38749.5956
The remainder is 512 after subtracting 3888 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

On to step 13:
If we divide 5120 by 648, we get 7 and a remainder of 584.
Put 7 as the next digit of the answer. 
Result so far: 38749.59567
If we subtract 4536 from 5120, we get 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Step 14:
648 goes into 5840 9 times with a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 38749.595679
If we subtract 5832 from 5840, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 15:
648 goes into 80 0 times with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 38749.595679
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 16:
If we divide 800 by 648, we get 1 and a remainder of 152.
Write down 1 as next digit of the result. 
Result so far: 38749.59567901
If we take 648 away from 800, we end up with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

In conclusion, the division gives 38749.59567901 with a balance of 1.52e-07.