We divide 66172833 by 54
The aim is to understand the frequency of 54 in 66172833.

Let's proceed to step 1:
When dividing 6 by 54, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 54

Advancing to step 2:
The number 54 fits into 66 1 times, leaving a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 54 from 66 and we're left with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 54

Advancing to step 3:
If we divide 121 by 54, we get 2 and a remainder of 13.
The next digit of our result is 2. 
Result so far: 12.0
The remainder is 13 after subtracting 108 from 121.
Append the next digit (7) from the dividend to 13 and continue with: 137 / 54

On to step 4:
54 goes into 137 2 times with a remainder of 29.
Use 2 as the next digit of our solution. 
Result so far: 122.0
The remainder is 29 after subtracting 108 from 137.
Bring next digit (2) of the dividend behind the 29 and repeat the process: 292 / 54

Moving on to step 5:
54 goes into 292 5 times with a remainder of 22.
Use 5 as the next digit of our solution. 
Result so far: 1225.0
If we take 270 away from 292, we end up with 22.
Include the next digit (8) from the dividend after 22, then repeat: 228 / 54

On to step 6:
54 goes into 228 4 times with a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 12254.0
Subtract 216 from 228 to get 12.
Include the next digit (3) from the dividend after 12, then repeat: 123 / 54

Let's proceed to step 7:
123 divided by 54 is 2 with a remainder of 15.
Write down 2 as next digit of the result. 
Result so far: 122542.0
If we subtract 108 from 123, we get 15.
Fetch the next digit (3) from the dividend, attach it to 15 and continue: 153 / 54

Going ahead to step 8:
When dividing 153 by 54, we get 2 with a remainder of 45.
Record the quotient 2 as the next digit in the result. 
Result so far: 1225422.0
Deduct 108 from 153 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 9:
If we divide 450 by 54, we get 8 and a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 1225422.8
If we take 432 away from 450, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 10:
54 can be fit into 180 3 times, resulting in a remainder of 18.
Record the quotient 3 as the next digit in the result. 
Result so far: 1225422.83
Deduct 162 from 180 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 11:
54 goes into 180 3 times with a remainder of 18.
Use 3 as the next digit of our solution. 
Result so far: 1225422.833
Subtract 162 from 180 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

After the division, we end up with 1225422.833 and a remainder of 0.0018.