43440 divided by 25 
The aim is to understand the frequency of 25 in 43440.

Going ahead to step 1:
25 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 25

Step 2:
25 goes into 43 1 times with a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 25 from 43, we get 18.
Include the next digit (4) from the dividend after 18, then repeat: 184 / 25

Moving on to step 3:
If we divide 184 by 25, we get 7 and a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Subtract 175 from 184 to get 9.
Take the next digit (4) from the dividend and append it to 9, then repeat: 94 / 25

On to step 4:
25 can be fit into 94 3 times, resulting in a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 173.0
If we subtract 75 from 94, we get 19.
Append the next digit (0) from the dividend to 19 and continue with: 190 / 25

Advancing to step 5:
25 can be fit into 190 7 times, resulting in a remainder of 15.
Record the quotient 7 as the next digit in the result. 
Result so far: 1737.0
Deduct 175 from 190 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.

Moving on to step 6:
150 divided by 25 is 6 with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 1737.6
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.

Step 7:
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: 1737.6
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.

Step 8:
25 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1737.6
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.

Our division results in 1737.6 with a remaining 0.0.