We're dividing 25240289 by 648 
We're looking to find how many times 648 goes into 25240289.

Moving on to step 1:
648 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 648

On to step 2:
648 goes into 25 0 times with a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Take the next digit (2) from the dividend and append it to 25, then repeat: 252 / 648

Moving on to step 3:
If we divide 252 by 648, we get 0 and a remainder of 252.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 252 and we're left with 252.
Grab the next digit (4) from the dividend, add it to 252, then carry on: 2524 / 648

Step 4:
The number 648 fits into 2524 3 times, leaving a remainder of 580.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 1944 from 2524, we get 580.
Fetch the next digit (0) from the dividend, attach it to 580 and continue: 5800 / 648

Moving on to step 5:
If we divide 5800 by 648, we get 8 and a remainder of 616.
Write down 8 as next digit of the result. 
Result so far: 38.0
If we subtract 5184 from 5800, we get 616.
Grab the next digit (2) from the dividend, add it to 616, then carry on: 6162 / 648

Going ahead to step 6:
The number 648 fits into 6162 9 times, leaving a remainder of 330.
Write down 9 as next digit of the result. 
Result so far: 389.0
The remainder is 330 after subtracting 5832 from 6162.
Take the next digit (8) from the dividend and append it to 330, then repeat: 3308 / 648

On to step 7:
When dividing 3308 by 648, we get 5 with a remainder of 68.
Use 5 as the next digit of our solution. 
Result so far: 3895.0
If we subtract 3240 from 3308, we get 68.
Fetch the next digit (9) from the dividend, attach it to 68 and continue: 689 / 648

Step 8:
648 can be fit into 689 1 times, resulting in a remainder of 41.
The next digit of our result is 1. 
Result so far: 38951.0
If we take 648 away from 689, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 9:
648 can be fit into 410 0 times, resulting in a remainder of 410.
Put 0 as the next digit of the answer. 
Result so far: 38951.0
If we take 0 away from 410, we end up with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Moving on to step 10:
648 can be fit into 4100 6 times, resulting in a remainder of 212.
The number 6 becomes the next digit in our result. 
Result so far: 38951.06
Subtracting 3888 from 4100 leaves us with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Step 11:
2120 divided by 648 is 3 with a remainder of 176.
Use 3 as the next digit of our solution. 
Result so far: 38951.063
Deduct 1944 from 2120 and we're left with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Step 12:
If we divide 1760 by 648, we get 2 and a remainder of 464.
Put 2 as the next digit of the answer. 
Result so far: 38951.0632
Deduct 1296 from 1760 and we're left with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Step 13:
4640 divided by 648 is 7 with a remainder of 104.
Record the quotient 7 as the next digit in the result. 
Result so far: 38951.06327
Subtracting 4536 from 4640 leaves us with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Moving on to step 14:
1040 divided by 648 is 1 with a remainder of 392.
The number 1 becomes the next digit in our result. 
Result so far: 38951.063271
The remainder is 392 after subtracting 648 from 1040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Moving on to step 15:
3920 divided by 648 is 6 with a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 38951.0632716
If we subtract 3888 from 3920, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 16:
The number 648 fits into 320 0 times, leaving a remainder of 320.
The next digit of our result is 0. 
Result so far: 38951.0632716
If we subtract 0 from 320, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

The final result is 38951.0632716 with a remainder of 3.2e-07.