51282420 ÷ 54 
The aim is to understand the frequency of 54 in 51282420.

Moving on to step 1:
54 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 54

Going ahead to step 2:
54 goes into 51 0 times with a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Fetch the next digit (2) from the dividend, attach it to 51 and continue: 512 / 54

Advancing to step 3:
512 divided by 54 is 9 with a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we subtract 486 from 512, we get 26.
Include the next digit (8) from the dividend after 26, then repeat: 268 / 54

On to step 4:
The number 54 fits into 268 4 times, leaving a remainder of 52.
The next digit of our result is 4. 
Result so far: 94.0
The remainder is 52 after subtracting 216 from 268.
Bring next digit (2) of the dividend behind the 52 and repeat the process: 522 / 54

On to step 5:
54 goes into 522 9 times with a remainder of 36.
Write down 9 as next digit of the result. 
Result so far: 949.0
The remainder is 36 after subtracting 486 from 522.
Bring next digit (4) of the dividend behind the 36 and repeat the process: 364 / 54

Let's proceed to step 6:
The number 54 fits into 364 6 times, leaving a remainder of 40.
The next digit of our result is 6. 
Result so far: 9496.0
Subtract 324 from 364 to get 40.
Include the next digit (2) from the dividend after 40, then repeat: 402 / 54

Advancing to step 7:
If we divide 402 by 54, we get 7 and a remainder of 24.
Record the quotient 7 as the next digit in the result. 
Result so far: 94967.0
Subtract 378 from 402 to get 24.
Fetch the next digit (0) from the dividend, attach it to 24 and continue: 240 / 54

On to step 8:
The number 54 fits into 240 4 times, leaving a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 949674.0
The remainder is 24 after subtracting 216 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 9:
240 divided by 54 is 4 with a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 949674.4
Subtract 216 from 240 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 10:
240 divided by 54 is 4 with a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 949674.44
If we take 216 away from 240, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

In conclusion, the division gives 949674.44 with a balance of 0.024.