We look at the division of 393132 by 66 
The aim is to understand the frequency of 66 in 393132.

On to step 1:
If we divide 3 by 66, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 66

On to step 2:
39 divided by 66 is 0 with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Take the next digit (3) from the dividend and append it to 39, then repeat: 393 / 66

Advancing to step 3:
66 goes into 393 5 times with a remainder of 63.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 330 from 393 to get 63.
Take the next digit (1) from the dividend and append it to 63, then repeat: 631 / 66

Advancing to step 4:
If we divide 631 by 66, we get 9 and a remainder of 37.
Record the quotient 9 as the next digit in the result. 
Result so far: 59.0
Subtracting 594 from 631 leaves us with 37.
Take the next digit (3) from the dividend and append it to 37, then repeat: 373 / 66

Step 5:
If we divide 373 by 66, we get 5 and a remainder of 43.
The next digit of our result is 5. 
Result so far: 595.0
If we take 330 away from 373, we end up with 43.
Bring next digit (2) of the dividend behind the 43 and repeat the process: 432 / 66

Let's proceed to step 6:
432 divided by 66 is 6 with a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 5956.0
Subtract 396 from 432 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.

Advancing to step 7:
If we divide 360 by 66, we get 5 and a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 5956.5
If we subtract 330 from 360, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
66 goes into 300 4 times with a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 5956.54
If we take 264 away from 300, we end up 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.

Step 9:
The number 66 fits into 360 5 times, leaving a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 5956.545
If we take 330 away from 360, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 10:
The number 66 fits into 300 4 times, leaving a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 5956.5454
Subtracting 264 from 300 leaves us 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.

Step 11:
If we divide 360 by 66, we get 5 and a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 5956.54545
Subtracting 330 from 360 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 12:
66 can be fit into 300 4 times, resulting in a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 5956.545454
If we subtract 264 from 300, we 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.

Advancing to step 13:
66 goes into 360 5 times with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 5956.5454545
Subtract 330 from 360 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 14:
66 can be fit into 300 4 times, resulting in a remainder of 36.
Write down 4 as next digit of the result. 
Result so far: 5956.54545454
If we take 264 away from 300, we end up 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.

In conclusion, the division gives 5956.54545454 with a balance of 3.6e-08.