Let's divide 491540 by 75
The aim is to understand the frequency of 75 in 491540.

Step 1:
75 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 75

Step 2:
If we divide 49 by 75, we get 0 and a remainder of 49.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 49 after subtracting 0 from 49.
Fetch the next digit (1) from the dividend, attach it to 49 and continue: 491 / 75

Step 3:
When dividing 491 by 75, we get 6 with a remainder of 41.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we take 450 away from 491, we end up with 41.
Take the next digit (5) from the dividend and append it to 41, then repeat: 415 / 75

Moving on to step 4:
75 goes into 415 5 times with a remainder of 40.
Use 5 as the next digit of our solution. 
Result so far: 65.0
The remainder is 40 after subtracting 375 from 415.
Take the next digit (4) from the dividend and append it to 40, then repeat: 404 / 75

Advancing to step 5:
75 can be fit into 404 5 times, resulting in a remainder of 29.
Use 5 as the next digit of our solution. 
Result so far: 655.0
Subtract 375 from 404 to get 29.
Include the next digit (0) from the dividend after 29, then repeat: 290 / 75

Step 6:
290 divided by 75 is 3 with a remainder of 65.
The number 3 becomes the next digit in our result. 
Result so far: 6553.0
The remainder is 65 after subtracting 225 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 7:
75 can be fit into 650 8 times, resulting in a remainder of 50.
Use 8 as the next digit of our solution. 
Result so far: 6553.8
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.

Advancing to step 8:
The number 75 fits into 500 6 times, leaving a remainder of 50.
Write down 6 as next digit of the result. 
Result so far: 6553.86
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.

Going ahead to step 9:
When dividing 500 by 75, we get 6 with a remainder of 50.
The number 6 becomes the next digit in our result. 
Result so far: 6553.866
Subtracting 450 from 500 leaves us with 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 6553.866 with a remainder of 0.005.