We look at the division of 530236 by 66 
The aim is to understand the frequency of 66 in 530236.

Advancing to step 1:
The number 66 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 66

Advancing to step 2:
66 goes into 53 0 times with a remainder of 53.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 53, we end up with 53.
Fetch the next digit (0) from the dividend, attach it to 53 and continue: 530 / 66

Going ahead to step 3:
530 divided by 66 is 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 528 from 530, we get 2.
Include the next digit (2) from the dividend after 2, then repeat: 22 / 66

Moving on to step 4:
22 divided by 66 is 0 with a remainder of 22.
Write down 0 as next digit of the result. 
Result so far: 80.0
Subtracting 0 from 22 leaves us with 22.
Fetch the next digit (3) from the dividend, attach it to 22 and continue: 223 / 66

Step 5:
223 divided by 66 is 3 with a remainder of 25.
The next digit of our result is 3. 
Result so far: 803.0
If we take 198 away from 223, we end up with 25.
Take the next digit (6) from the dividend and append it to 25, then repeat: 256 / 66

On to step 6:
256 divided by 66 is 3 with a remainder of 58.
Use 3 as the next digit of our solution. 
Result so far: 8033.0
Deduct 198 from 256 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 7:
580 divided by 66 is 8 with a remainder of 52.
The next digit of our result is 8. 
Result so far: 8033.8
Subtract 528 from 580 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 8:
66 can be fit into 520 7 times, resulting in a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 8033.87
The remainder is 58 after subtracting 462 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 9:
66 can be fit into 580 8 times, resulting in a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 8033.878
Subtract 528 from 580 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 10:
66 can be fit into 520 7 times, resulting in a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 8033.8787
Deduct 462 from 520 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 11:
When dividing 580 by 66, we get 8 with a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 8033.87878
If we take 528 away from 580, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 12:
520 divided by 66 is 7 with a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 8033.878787
The remainder is 58 after subtracting 462 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 13:
When dividing 580 by 66, we get 8 with a remainder of 52.
The next digit of our result is 8. 
Result so far: 8033.8787878
Subtract 528 from 580 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 14:
66 goes into 520 7 times with a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 8033.87878787
Deduct 462 from 520 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Our division results in 8033.87878787 with a remaining 5.8e-08.