We look at the division of 744553 by 25 
The aim is to understand the frequency of 25 in 744553.

Advancing to step 1:
If we divide 7 by 25, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 25

Let's proceed to step 2:
When dividing 74 by 25, we get 2 with a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 50 from 74, we get 24.
Bring next digit (4) of the dividend behind the 24 and repeat the process: 244 / 25

Advancing to step 3:
244 divided by 25 is 9 with a remainder of 19.
The number 9 becomes the next digit in our result. 
Result so far: 29.0
Subtract 225 from 244 to get 19.
Fetch the next digit (5) from the dividend, attach it to 19 and continue: 195 / 25

Moving on to step 4:
25 goes into 195 7 times with a remainder of 20.
The next digit of our result is 7. 
Result so far: 297.0
The remainder is 20 after subtracting 175 from 195.
Fetch the next digit (5) from the dividend, attach it to 20 and continue: 205 / 25

On to step 5:
If we divide 205 by 25, we get 8 and a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 2978.0
Subtracting 200 from 205 leaves us with 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 25

Going ahead to step 6:
The number 25 fits into 53 2 times, leaving a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 29782.0
Deduct 50 from 53 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
25 goes into 30 1 times with a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 29782.1
Deduct 25 from 30 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
25 can be fit into 50 2 times, resulting in a remainder of 0.
The next digit of our result is 2. 
Result so far: 29782.12
Subtract 50 from 50 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:
When dividing 0 by 25, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 29782.12
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.

Step 10:
If we divide 0 by 25, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 29782.12
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.

After the division, we end up with 29782.12 and a remainder of 0.0.