We look at the division of 545183 by 66 
The aim is to understand the frequency of 66 in 545183.

Advancing to step 1:
When dividing 5 by 66, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 66

On to step 2:
The number 66 fits into 54 0 times, leaving a remainder of 54.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 54, we get 54.
Include the next digit (5) from the dividend after 54, then repeat: 545 / 66

Let's proceed to step 3:
When dividing 545 by 66, we get 8 with a remainder of 17.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 528 from 545 and we're left with 17.
Grab the next digit (1) from the dividend, add it to 17, then carry on: 171 / 66

Step 4:
When dividing 171 by 66, we get 2 with a remainder of 39.
Use 2 as the next digit of our solution. 
Result so far: 82.0
The remainder is 39 after subtracting 132 from 171.
Append the next digit (8) from the dividend to 39 and continue with: 398 / 66

Moving on to step 5:
If we divide 398 by 66, we get 6 and a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 826.0
Subtract 396 from 398 to get 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 66

On to step 6:
When dividing 23 by 66, we get 0 with a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 8260.0
Subtract 0 from 23 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 7:
66 goes into 230 3 times with a remainder of 32.
Record the quotient 3 as the next digit in the result. 
Result so far: 8260.3
If we take 198 away from 230, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 8:
If we divide 320 by 66, we get 4 and a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 8260.34
The remainder is 56 after subtracting 264 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 9:
When dividing 560 by 66, we get 8 with a remainder of 32.
The next digit of our result is 8. 
Result so far: 8260.348
Subtracting 528 from 560 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 10:
320 divided by 66 is 4 with a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 8260.3484
Subtract 264 from 320 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 11:
66 can be fit into 560 8 times, resulting in a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 8260.34848
Deduct 528 from 560 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 12:
320 divided by 66 is 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 8260.348484
Deduct 264 from 320 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 13:
When dividing 560 by 66, we get 8 with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 8260.3484848
Subtracting 528 from 560 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 14:
If we divide 320 by 66, we get 4 and a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 8260.34848484
The remainder is 56 after subtracting 264 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

In conclusion, the division gives 8260.34848484 with a balance of 5.6e-08.