We look at the division of 422943 by 54 
The aim is to understand the frequency of 54 in 422943.

Moving on to step 1:
The number 54 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 54

On to step 2:
54 goes into 42 0 times with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Append the next digit (2) from the dividend to 42 and continue with: 422 / 54

On to step 3:
If we divide 422 by 54, we get 7 and a remainder of 44.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 44 after subtracting 378 from 422.
Append the next digit (9) from the dividend to 44 and continue with: 449 / 54

Let's proceed to step 4:
449 divided by 54 is 8 with a remainder of 17.
Use 8 as the next digit of our solution. 
Result so far: 78.0
Deduct 432 from 449 and we're left with 17.
Include the next digit (4) from the dividend after 17, then repeat: 174 / 54

Step 5:
54 goes into 174 3 times with a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 783.0
If we take 162 away from 174, we end up with 12.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 54

Going ahead to step 6:
The number 54 fits into 123 2 times, leaving a remainder of 15.
The next digit of our result is 2. 
Result so far: 7832.0
Subtracting 108 from 123 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
The number 54 fits into 150 2 times, leaving a remainder of 42.
The number 2 becomes the next digit in our result. 
Result so far: 7832.2
If we take 108 away from 150, 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.

Advancing to step 8:
The number 54 fits into 420 7 times, leaving a remainder of 42.
Record the quotient 7 as the next digit in the result. 
Result so far: 7832.27
The remainder is 42 after subtracting 378 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 9:
420 divided by 54 is 7 with a remainder of 42.
Put 7 as the next digit of the answer. 
Result so far: 7832.277
Subtract 378 from 420 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.

Our division results in 7832.277 with a remaining 0.0042.