We're dividing 42648301 by 25 
We want to divide 42648301 by 25.

On to step 1:
4 divided by 25 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 25

Moving on to step 2:
If we divide 42 by 25, we get 1 and a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 25 from 42 and we're left with 17.
Include the next digit (6) from the dividend after 17, then repeat: 176 / 25

Step 3:
The number 25 fits into 176 7 times, leaving a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 17.0
If we take 175 away from 176, we end up with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 25

Advancing to step 4:
When dividing 14 by 25, we get 0 with a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 170.0
If we take 0 away from 14, we end up with 14.
Bring next digit (8) of the dividend behind the 14 and repeat the process: 148 / 25

Step 5:
25 can be fit into 148 5 times, resulting in a remainder of 23.
The number 5 becomes the next digit in our result. 
Result so far: 1705.0
Subtracting 125 from 148 leaves us with 23.
Include the next digit (3) from the dividend after 23, then repeat: 233 / 25

Moving on to step 6:
The number 25 fits into 233 9 times, leaving a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 17059.0
The remainder is 8 after subtracting 225 from 233.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 25

Advancing to step 7:
25 goes into 80 3 times with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 170593.0
Subtracting 75 from 80 leaves us with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 25

Going ahead to step 8:
If we divide 51 by 25, we get 2 and a remainder of 1.
The next digit of our result is 2. 
Result so far: 1705932.0
Deduct 50 from 51 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 9:
25 can be fit into 10 0 times, resulting in a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 1705932.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
The number 25 fits into 100 4 times, leaving a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 1705932.04
Subtracting 100 from 100 leaves us 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.

Moving on to step 11:
0 divided by 25 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1705932.04
Subtract 0 from 0 to 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.

Moving on to step 12:
When dividing 0 by 25, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1705932.04
If we take 0 away from 0, we end up 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.

The final result is 1705932.04 with a remainder of 0.0.