We look at the division of 25407755 by 400 
Let's see how many times 400 fits into 25407755.

Advancing to step 1:
The number 400 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 400

Going ahead to step 2:
When dividing 25 by 400, we get 0 with 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.
Include the next digit (4) from the dividend after 25, then repeat: 254 / 400

Going ahead to step 3:
254 divided by 400 is 0 with a remainder of 254.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 254 and we're left with 254.
Take the next digit (0) from the dividend and append it to 254, then repeat: 2540 / 400

Going ahead to step 4:
2540 divided by 400 is 6 with a remainder of 140.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 2400 from 2540 to get 140.
Take the next digit (7) from the dividend and append it to 140, then repeat: 1407 / 400

Let's proceed to step 5:
If we divide 1407 by 400, we get 3 and a remainder of 207.
Write down 3 as next digit of the result. 
Result so far: 63.0
The remainder is 207 after subtracting 1200 from 1407.
Append the next digit (7) from the dividend to 207 and continue with: 2077 / 400

Moving on to step 6:
The number 400 fits into 2077 5 times, leaving a remainder of 77.
Write down 5 as next digit of the result. 
Result so far: 635.0
If we subtract 2000 from 2077, we get 77.
Fetch the next digit (5) from the dividend, attach it to 77 and continue: 775 / 400

On to step 7:
775 divided by 400 is 1 with a remainder of 375.
Use 1 as the next digit of our solution. 
Result so far: 6351.0
Subtracting 400 from 775 leaves us with 375.
Include the next digit (5) from the dividend after 375, then repeat: 3755 / 400

Advancing to step 8:
400 can be fit into 3755 9 times, resulting in a remainder of 155.
The number 9 becomes the next digit in our result. 
Result so far: 63519.0
If we take 3600 away from 3755, we end up with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

On to step 9:
If we divide 1550 by 400, we get 3 and a remainder of 350.
Put 3 as the next digit of the answer. 
Result so far: 63519.3
If we subtract 1200 from 1550, we get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Step 10:
When dividing 3500 by 400, we get 8 with a remainder of 300.
The next digit of our result is 8. 
Result so far: 63519.38
Subtracting 3200 from 3500 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 11:
3000 divided by 400 is 7 with a remainder of 200.
Write down 7 as next digit of the result. 
Result so far: 63519.387
Subtracting 2800 from 3000 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 12:
400 can be fit into 2000 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 63519.3875
Deduct 2000 from 2000 and we're left 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.

Let's proceed to step 13:
If we divide 0 by 400, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 63519.3875
Subtracting 0 from 0 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.

On to step 14:
The number 400 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 63519.3875
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.

After the division, we end up with 63519.3875 and a remainder of 0.0.