524163 ÷ 66 
The aim is to understand the frequency of 66 in 524163.

Let's proceed to step 1:
If we divide 5 by 66, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 66

On to step 2:
When dividing 52 by 66, we get 0 with a remainder of 52.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 52 and we're left with 52.
Take the next digit (4) from the dividend and append it to 52, then repeat: 524 / 66

Advancing to step 3:
When dividing 524 by 66, we get 7 with a remainder of 62.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we take 462 away from 524, we end up with 62.
Append the next digit (1) from the dividend to 62 and continue with: 621 / 66

On to step 4:
66 can be fit into 621 9 times, resulting in a remainder of 27.
Record the quotient 9 as the next digit in the result. 
Result so far: 79.0
The remainder is 27 after subtracting 594 from 621.
Include the next digit (6) from the dividend after 27, then repeat: 276 / 66

On to step 5:
If we divide 276 by 66, we get 4 and a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 794.0
Subtracting 264 from 276 leaves us with 12.
Take the next digit (3) from the dividend and append it to 12, then repeat: 123 / 66

On to step 6:
66 goes into 123 1 times with a remainder of 57.
Write down 1 as next digit of the result. 
Result so far: 7941.0
If we subtract 66 from 123, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 7:
When dividing 570 by 66, we get 8 with a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 7941.8
If we take 528 away from 570, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 8:
When dividing 420 by 66, we get 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 7941.86
Subtracting 396 from 420 leaves us 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.

On to step 9:
The number 66 fits into 240 3 times, leaving a remainder of 42.
Record the quotient 3 as the next digit in the result. 
Result so far: 7941.863
If we subtract 198 from 240, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 10:
When dividing 420 by 66, we get 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 7941.8636
Subtracting 396 from 420 leaves us 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.

Advancing to step 11:
66 goes into 240 3 times with a remainder of 42.
The next digit of our result is 3. 
Result so far: 7941.86363
Subtracting 198 from 240 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 12:
420 divided by 66 is 6 with a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 7941.863636
Deduct 396 from 420 and we're left 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.

Moving on to step 13:
66 goes into 240 3 times with a remainder of 42.
Record the quotient 3 as the next digit in the result. 
Result so far: 7941.8636363
If we subtract 198 from 240, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 14:
The number 66 fits into 420 6 times, leaving a remainder of 24.
The next digit of our result is 6. 
Result so far: 7941.86363636
Subtract 396 from 420 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.

The final result is 7941.86363636 with a remainder of 2.4e-08.