We're dividing 409248 by 75 
The aim is to understand the frequency of 75 in 409248.

Going ahead to step 1:
75 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 75

On to step 2:
The number 75 fits into 40 0 times, leaving a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Include the next digit (9) from the dividend after 40, then repeat: 409 / 75

Step 3:
75 can be fit into 409 5 times, resulting in a remainder of 34.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 375 from 409 leaves us with 34.
Bring next digit (2) of the dividend behind the 34 and repeat the process: 342 / 75

Going ahead to step 4:
If we divide 342 by 75, we get 4 and a remainder of 42.
The next digit of our result is 4. 
Result so far: 54.0
Subtracting 300 from 342 leaves us with 42.
Include the next digit (4) from the dividend after 42, then repeat: 424 / 75

Going ahead to step 5:
If we divide 424 by 75, we get 5 and a remainder of 49.
Put 5 as the next digit of the answer. 
Result so far: 545.0
Subtract 375 from 424 to get 49.
Grab the next digit (8) from the dividend, add it to 49, then carry on: 498 / 75

Step 6:
If we divide 498 by 75, we get 6 and a remainder of 48.
The number 6 becomes the next digit in our result. 
Result so far: 5456.0
The remainder is 48 after subtracting 450 from 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 7:
75 can be fit into 480 6 times, resulting in a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 5456.6
Deduct 450 from 480 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
300 divided by 75 is 4 with a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 5456.64
The remainder is 0 after subtracting 300 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
75 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5456.64
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 10:
The number 75 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 5456.64
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.

Our division results in 5456.64 with a remaining 0.0.