We look at the division of 442430 by 25 
The aim is to understand the frequency of 25 in 442430.

Advancing to step 1:
25 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 25

Going ahead to step 2:
When dividing 44 by 25, we get 1 with a remainder of 19.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 19 after subtracting 25 from 44.
Append the next digit (2) from the dividend to 19 and continue with: 192 / 25

Advancing to step 3:
The number 25 fits into 192 7 times, leaving a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 17.0
If we take 175 away from 192, we end up with 17.
Take the next digit (4) from the dividend and append it to 17, then repeat: 174 / 25

Let's proceed to step 4:
174 divided by 25 is 6 with a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 176.0
If we subtract 150 from 174, we get 24.
Take the next digit (3) from the dividend and append it to 24, then repeat: 243 / 25

Step 5:
25 can be fit into 243 9 times, resulting in a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 1769.0
Subtract 225 from 243 to get 18.
Bring next digit (0) of the dividend behind the 18 and repeat the process: 180 / 25

Advancing to step 6:
25 goes into 180 7 times with a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 17697.0
If we subtract 175 from 180, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 7:
The number 25 fits into 50 2 times, leaving a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 17697.2
Subtracting 50 from 50 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.

Advancing to step 8:
25 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 17697.2
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.

Moving on to step 9:
25 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 17697.2
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.

Our division results in 17697.2 with a remaining 0.0.