We're dividing 375342 by 54 
The aim is to understand the frequency of 54 in 375342.

Step 1:
If we divide 3 by 54, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 54

Going ahead to step 2:
54 goes into 37 0 times with a remainder of 37.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 37 and we're left with 37.
Include the next digit (5) from the dividend after 37, then repeat: 375 / 54

On to step 3:
375 divided by 54 is 6 with a remainder of 51.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we take 324 away from 375, we end up with 51.
Bring next digit (3) of the dividend behind the 51 and repeat the process: 513 / 54

Moving on to step 4:
513 divided by 54 is 9 with a remainder of 27.
The next digit of our result is 9. 
Result so far: 69.0
Subtracting 486 from 513 leaves us with 27.
Fetch the next digit (4) from the dividend, attach it to 27 and continue: 274 / 54

Advancing to step 5:
54 goes into 274 5 times with a remainder of 4.
The number 5 becomes the next digit in our result. 
Result so far: 695.0
Subtracting 270 from 274 leaves us with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 54

Moving on to step 6:
54 can be fit into 42 0 times, resulting in a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 6950.0
Subtract 0 from 42 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 7:
54 goes into 420 7 times with a remainder of 42.
The number 7 becomes the next digit in our result. 
Result so far: 6950.7
If we subtract 378 from 420, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 8:
If we divide 420 by 54, we get 7 and a remainder of 42.
Record the quotient 7 as the next digit in the result. 
Result so far: 6950.77
If we take 378 away from 420, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Our division results in 6950.77 with a remaining 0.042.