We look at the division of 584073 by 54 
The aim is to understand the frequency of 54 in 584073.

On to step 1:
The number 54 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 54

Moving on to step 2:
When dividing 58 by 54, we get 1 with a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 54 from 58 leaves us with 4.
Fetch the next digit (4) from the dividend, attach it to 4 and continue: 44 / 54

Let's proceed to step 3:
The number 54 fits into 44 0 times, leaving a remainder of 44.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 44 and we're left with 44.
Fetch the next digit (0) from the dividend, attach it to 44 and continue: 440 / 54

Step 4:
440 divided by 54 is 8 with a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 108.0
If we take 432 away from 440, we end up with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 54

Moving on to step 5:
87 divided by 54 is 1 with a remainder of 33.
Write down 1 as next digit of the result. 
Result so far: 1081.0
The remainder is 33 after subtracting 54 from 87.
Include the next digit (3) from the dividend after 33, then repeat: 333 / 54

Advancing to step 6:
If we divide 333 by 54, we get 6 and a remainder of 9.
Write down 6 as next digit of the result. 
Result so far: 10816.0
Deduct 324 from 333 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
When dividing 90 by 54, we get 1 with a remainder of 36.
Write down 1 as next digit of the result. 
Result so far: 10816.1
Deduct 54 from 90 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 8:
54 can be fit into 360 6 times, resulting in a remainder of 36.
Write down 6 as next digit of the result. 
Result so far: 10816.16
Deduct 324 from 360 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 9:
54 can be fit into 360 6 times, resulting in a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 10816.166
Subtract 324 from 360 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

After the division, we end up with 10816.166 and a remainder of 0.0036.