25159487 divided by 400 
The aim is to understand the frequency of 400 in 25159487.

Going ahead to step 1:
2 divided by 400 is 0 with 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.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 400

Going ahead to step 2:
When dividing 25 by 400, we get 0 with a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 400

Going ahead to step 3:
400 goes into 251 0 times 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.
Take the next digit (5) from the dividend and append it to 251, then repeat: 2515 / 400

Step 4:
If we divide 2515 by 400, we get 6 and a remainder of 115.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 2400 from 2515 leaves us with 115.
Grab the next digit (9) from the dividend, add it to 115, then carry on: 1159 / 400

Moving on to step 5:
If we divide 1159 by 400, we get 2 and a remainder of 359.
Write down 2 as next digit of the result. 
Result so far: 62.0
If we subtract 800 from 1159, we get 359.
Fetch the next digit (4) from the dividend, attach it to 359 and continue: 3594 / 400

Going ahead to step 6:
400 can be fit into 3594 8 times, resulting in a remainder of 394.
Write down 8 as next digit of the result. 
Result so far: 628.0
Subtracting 3200 from 3594 leaves us with 394.
Grab the next digit (8) from the dividend, add it to 394, then carry on: 3948 / 400

Let's proceed to step 7:
If we divide 3948 by 400, we get 9 and a remainder of 348.
Put 9 as the next digit of the answer. 
Result so far: 6289.0
The remainder is 348 after subtracting 3600 from 3948.
Grab the next digit (7) from the dividend, add it to 348, then carry on: 3487 / 400

Let's proceed to step 8:
The number 400 fits into 3487 8 times, leaving a remainder of 287.
The number 8 becomes the next digit in our result. 
Result so far: 62898.0
The remainder is 287 after subtracting 3200 from 3487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2870, and continue the process.

Going ahead to step 9:
400 can be fit into 2870 7 times, resulting in a remainder of 70.
Record the quotient 7 as the next digit in the result. 
Result so far: 62898.7
Subtract 2800 from 2870 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 10:
If we divide 700 by 400, we get 1 and a remainder of 300.
Record the quotient 1 as the next digit in the result. 
Result so far: 62898.71
Deduct 400 from 700 and we're left 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.

Step 11:
400 goes into 3000 7 times with a remainder of 200.
Write down 7 as next digit of the result. 
Result so far: 62898.717
If we subtract 2800 from 3000, we get 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:
The number 400 fits into 2000 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 62898.7175
The remainder is 0 after subtracting 2000 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 13:
If we divide 0 by 400, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 62898.7175
If we subtract 0 from 0, we 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.

Advancing to step 14:
400 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 62898.7175
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 62898.7175 with a balance of 0.0.