453939 divided by 25 
The aim is to understand the frequency of 25 in 453939.

Going ahead to step 1:
The number 25 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 25

Going ahead to step 2:
If we divide 45 by 25, we get 1 and a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 20 after subtracting 25 from 45.
Include the next digit (3) from the dividend after 20, then repeat: 203 / 25

On to step 3:
If we divide 203 by 25, we get 8 and a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 18.0
The remainder is 3 after subtracting 200 from 203.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 25

Moving on to step 4:
When dividing 39 by 25, we get 1 with a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 181.0
The remainder is 14 after subtracting 25 from 39.
Bring next digit (3) of the dividend behind the 14 and repeat the process: 143 / 25

Going ahead to step 5:
25 goes into 143 5 times with a remainder of 18.
The next digit of our result is 5. 
Result so far: 1815.0
If we take 125 away from 143, we end up with 18.
Bring next digit (9) of the dividend behind the 18 and repeat the process: 189 / 25

Advancing to step 6:
The number 25 fits into 189 7 times, leaving a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 18157.0
Deduct 175 from 189 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 7:
If we divide 140 by 25, we get 5 and a remainder of 15.
The next digit of our result is 5. 
Result so far: 18157.5
Deduct 125 from 140 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 8:
The number 25 fits into 150 6 times, leaving a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 18157.56
Subtract 150 from 150 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.

Advancing to step 9:
The number 25 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 18157.56
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.

On to step 10:
The number 25 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 18157.56
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.

In conclusion, the division gives 18157.56 with a balance of 0.0.