We look at the division of 54315804 by 75 
The aim is to understand the frequency of 75 in 54315804.

On to step 1:
75 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 75

Going ahead to step 2:
75 can be fit into 54 0 times, resulting in a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 54 and we're left with 54.
Fetch the next digit (3) from the dividend, attach it to 54 and continue: 543 / 75

Step 3:
543 divided by 75 is 7 with a remainder of 18.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 18 after subtracting 525 from 543.
Take the next digit (1) from the dividend and append it to 18, then repeat: 181 / 75

Moving on to step 4:
75 can be fit into 181 2 times, resulting in a remainder of 31.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
Subtract 150 from 181 to get 31.
Include the next digit (5) from the dividend after 31, then repeat: 315 / 75

Step 5:
The number 75 fits into 315 4 times, leaving a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 724.0
Subtracting 300 from 315 leaves us with 15.
Bring next digit (8) of the dividend behind the 15 and repeat the process: 158 / 75

Advancing to step 6:
158 divided by 75 is 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 7242.0
Deduct 150 from 158 and we're left with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 75

Let's proceed to step 7:
When dividing 80 by 75, we get 1 with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 72421.0
If we take 75 away from 80, we end up with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 75

Going ahead to step 8:
54 divided by 75 is 0 with a remainder of 54.
The next digit of our result is 0. 
Result so far: 724210.0
The remainder is 54 after subtracting 0 from 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 9:
When dividing 540 by 75, we get 7 with a remainder of 15.
The number 7 becomes the next digit in our result. 
Result so far: 724210.7
Subtract 525 from 540 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 10:
The number 75 fits into 150 2 times, leaving a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 724210.72
Deduct 150 from 150 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.

Step 11:
0 divided by 75 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 724210.72
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.

Going ahead to step 12:
75 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 724210.72
The remainder is 0 after subtracting 0 from 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 724210.72 with a remainder of 0.0.