454331 divided by 25 
The aim is to understand the frequency of 25 in 454331.

Moving on to step 1:
25 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 25

Moving on to step 2:
25 goes into 45 1 times with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 25 from 45 leaves us with 20.
Grab the next digit (4) from the dividend, add it to 20, then carry on: 204 / 25

Advancing to step 3:
204 divided by 25 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 18.0
The remainder is 4 after subtracting 200 from 204.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 25

On to step 4:
When dividing 43 by 25, we get 1 with a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 181.0
If we take 25 away from 43, we end up with 18.
Fetch the next digit (3) from the dividend, attach it to 18 and continue: 183 / 25

Going ahead to step 5:
25 goes into 183 7 times with a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 1817.0
Subtracting 175 from 183 leaves us with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 25

Step 6:
If we divide 81 by 25, we get 3 and a remainder of 6.
The next digit of our result is 3. 
Result so far: 18173.0
Subtract 75 from 81 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
If we divide 60 by 25, we get 2 and a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 18173.2
Subtracting 50 from 60 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.

Advancing to step 8:
When dividing 100 by 25, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 18173.24
The remainder is 0 after subtracting 100 from 100.
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 9:
When dividing 0 by 25, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 18173.24
Deduct 0 from 0 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.

Advancing to step 10:
0 divided by 25 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 18173.24
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.

After the division, we end up with 18173.24 and a remainder of 0.0.