We look at the division of 54696 by 66 
The aim is to understand the frequency of 66 in 54696.

Let's proceed to step 1:
66 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 66

Moving on to step 2:
54 divided by 66 is 0 with a remainder of 54.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 54 and we're left with 54.
Bring next digit (6) of the dividend behind the 54 and repeat the process: 546 / 66

On to step 3:
The number 66 fits into 546 8 times, leaving a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 528 away from 546, we end up with 18.
Fetch the next digit (9) from the dividend, attach it to 18 and continue: 189 / 66

Step 4:
The number 66 fits into 189 2 times, leaving a remainder of 57.
Use 2 as the next digit of our solution. 
Result so far: 82.0
Deduct 132 from 189 and we're left with 57.
Append the next digit (6) from the dividend to 57 and continue with: 576 / 66

Advancing to step 5:
66 can be fit into 576 8 times, resulting in a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 828.0
If we take 528 away from 576, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 6:
When dividing 480 by 66, we get 7 with a remainder of 18.
Record the quotient 7 as the next digit in the result. 
Result so far: 828.7
If we subtract 462 from 480, we 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.

On to step 7:
When dividing 180 by 66, we get 2 with a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 828.72
Deduct 132 from 180 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 8:
When dividing 480 by 66, we get 7 with a remainder of 18.
Write down 7 as next digit of the result. 
Result so far: 828.727
If we take 462 away from 480, 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.

Going ahead to step 9:
The number 66 fits into 180 2 times, leaving a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 828.7272
If we take 132 away from 180, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
When dividing 480 by 66, we get 7 with a remainder of 18.
Record the quotient 7 as the next digit in the result. 
Result so far: 828.72727
Subtract 462 from 480 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.

Moving on to step 11:
The number 66 fits into 180 2 times, leaving a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 828.727272
If we subtract 132 from 180, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 12:
66 can be fit into 480 7 times, resulting in a remainder of 18.
Use 7 as the next digit of our solution. 
Result so far: 828.7272727
The remainder is 18 after subtracting 462 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 13:
The number 66 fits into 180 2 times, leaving a remainder of 48.
The next digit of our result is 2. 
Result so far: 828.72727272
Deduct 132 from 180 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final outcome is 828.72727272, with a leftover of 4.8e-08.