We're dividing 22404523 by 25 
The aim is to understand the frequency of 25 in 22404523.

Going ahead to step 1:
25 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 25

Step 2:
22 divided by 25 is 0 with a remainder of 22.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 22 to get 22.
Bring next digit (4) of the dividend behind the 22 and repeat the process: 224 / 25

On to step 3:
224 divided by 25 is 8 with a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we take 200 away from 224, we end up with 24.
Bring next digit (0) of the dividend behind the 24 and repeat the process: 240 / 25

Let's proceed to step 4:
The number 25 fits into 240 9 times, leaving a remainder of 15.
Write down 9 as next digit of the result. 
Result so far: 89.0
If we take 225 away from 240, we end up with 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 25

Advancing to step 5:
154 divided by 25 is 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 896.0
Subtracting 150 from 154 leaves us with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 25

Let's proceed to step 6:
45 divided by 25 is 1 with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 8961.0
Subtracting 25 from 45 leaves us with 20.
Take the next digit (2) from the dividend and append it to 20, then repeat: 202 / 25

Moving on to step 7:
202 divided by 25 is 8 with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 89618.0
If we subtract 200 from 202, we get 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 25

Moving on to step 8:
25 goes into 23 0 times with a remainder of 23.
Write down 0 as next digit of the result. 
Result so far: 896180.0
If we subtract 0 from 23, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 9:
25 can be fit into 230 9 times, resulting in a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 896180.9
Subtract 225 from 230 to 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.

Moving on to step 10:
The number 25 fits into 50 2 times, leaving a remainder of 0.
The next digit of our result is 2. 
Result so far: 896180.92
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 11:
If we divide 0 by 25, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 896180.92
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.

Advancing to step 12:
The number 25 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 896180.92
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 896180.92 and a remainder of 0.0.