Let's divide 171920 by 24
The aim is to understand the frequency of 24 in 171920.

On to step 1:
If we divide 1 by 24, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 24

On to step 2:
24 can be fit into 17 0 times, resulting in a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 17 leaves us with 17.
Fetch the next digit (1) from the dividend, attach it to 17 and continue: 171 / 24

Moving on to step 3:
When dividing 171 by 24, we get 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Deduct 168 from 171 and we're left with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 24

Step 4:
If we divide 39 by 24, we get 1 and a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 71.0
Subtract 24 from 39 to get 15.
Include the next digit (2) from the dividend after 15, then repeat: 152 / 24

Moving on to step 5:
152 divided by 24 is 6 with a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 716.0
Subtracting 144 from 152 leaves us with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 24

On to step 6:
The number 24 fits into 80 3 times, leaving a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 7163.0
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 7:
24 goes into 80 3 times with a remainder of 8.
The next digit of our result is 3. 
Result so far: 7163.3
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 8:
The number 24 fits into 80 3 times, leaving a remainder of 8.
The next digit of our result is 3. 
Result so far: 7163.33
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 7163.33 with a remainder of 0.008.