We look at the division of 394041 by 75 
The aim is to understand the frequency of 75 in 394041.

On to step 1:
If we divide 3 by 75, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 75

Going ahead to step 2:
39 divided by 75 is 0 with a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Fetch the next digit (4) from the dividend, attach it to 39 and continue: 394 / 75

Moving on to step 3:
The number 75 fits into 394 5 times, leaving a remainder of 19.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 375 from 394 to get 19.
Append the next digit (0) from the dividend to 19 and continue with: 190 / 75

Moving on to step 4:
75 goes into 190 2 times with a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
Subtracting 150 from 190 leaves us with 40.
Take the next digit (4) from the dividend and append it to 40, then repeat: 404 / 75

Moving on to step 5:
75 can be fit into 404 5 times, resulting in a remainder of 29.
The number 5 becomes the next digit in our result. 
Result so far: 525.0
The remainder is 29 after subtracting 375 from 404.
Append the next digit (1) from the dividend to 29 and continue with: 291 / 75

Let's proceed to step 6:
75 goes into 291 3 times with a remainder of 66.
The number 3 becomes the next digit in our result. 
Result so far: 5253.0
Deduct 225 from 291 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 7:
If we divide 660 by 75, we get 8 and a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 5253.8
Deduct 600 from 660 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 8:
The number 75 fits into 600 8 times, leaving a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 5253.88
If we subtract 600 from 600, we 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.

The final outcome is 5253.88, with a leftover of 0.0.