303171 divided by 75 
The aim is to understand the frequency of 75 in 303171.

Let's proceed to step 1:
3 divided by 75 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 75

Advancing to step 2:
75 goes into 30 0 times with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Include the next digit (3) from the dividend after 30, then repeat: 303 / 75

Let's proceed to step 3:
The number 75 fits into 303 4 times, leaving a remainder of 3.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 300 from 303 leaves us with 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 75

Let's proceed to step 4:
The number 75 fits into 31 0 times, leaving a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 40.0
Subtract 0 from 31 to get 31.
Grab the next digit (7) from the dividend, add it to 31, then carry on: 317 / 75

On to step 5:
When dividing 317 by 75, we get 4 with a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 404.0
The remainder is 17 after subtracting 300 from 317.
Fetch the next digit (1) from the dividend, attach it to 17 and continue: 171 / 75

Going ahead to step 6:
75 can be fit into 171 2 times, resulting in a remainder of 21.
The number 2 becomes the next digit in our result. 
Result so far: 4042.0
Subtract 150 from 171 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 7:
75 can be fit into 210 2 times, resulting in a remainder of 60.
The number 2 becomes the next digit in our result. 
Result so far: 4042.2
If we subtract 150 from 210, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 8:
75 goes into 600 8 times with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 4042.28
Subtract 600 from 600 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.

On to step 9:
If we divide 0 by 75, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4042.28
If we subtract 0 from 0, 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.

Step 10:
0 divided by 75 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4042.28
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.

The final result is 4042.28 with a remainder of 0.0.