We look at the division of 331874 by 75 
The aim is to understand the frequency of 75 in 331874.

On to step 1:
The number 75 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 75

Step 2:
33 divided by 75 is 0 with a remainder of 33.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 33 to get 33.
Grab the next digit (1) from the dividend, add it to 33, then carry on: 331 / 75

Moving on to step 3:
When dividing 331 by 75, we get 4 with a remainder of 31.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 300 from 331 leaves us with 31.
Include the next digit (8) from the dividend after 31, then repeat: 318 / 75

Step 4:
When dividing 318 by 75, we get 4 with a remainder of 18.
Record the quotient 4 as the next digit in the result. 
Result so far: 44.0
If we subtract 300 from 318, we get 18.
Grab the next digit (7) from the dividend, add it to 18, then carry on: 187 / 75

Moving on to step 5:
If we divide 187 by 75, we get 2 and a remainder of 37.
The next digit of our result is 2. 
Result so far: 442.0
Subtracting 150 from 187 leaves us with 37.
Include the next digit (4) from the dividend after 37, then repeat: 374 / 75

Advancing to step 6:
If we divide 374 by 75, we get 4 and a remainder of 74.
Put 4 as the next digit of the answer. 
Result so far: 4424.0
If we subtract 300 from 374, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 7:
The number 75 fits into 740 9 times, leaving a remainder of 65.
The number 9 becomes the next digit in our result. 
Result so far: 4424.9
Subtracting 675 from 740 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 8:
650 divided by 75 is 8 with a remainder of 50.
Write down 8 as next digit of the result. 
Result so far: 4424.98
Subtract 600 from 650 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 9:
500 divided by 75 is 6 with a remainder of 50.
Record the quotient 6 as the next digit in the result. 
Result so far: 4424.986
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 10:
If we divide 500 by 75, we get 6 and a remainder of 50.
Use 6 as the next digit of our solution. 
Result so far: 4424.9866
Subtract 450 from 500 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 4424.9866 with a remainder of 0.0005.