66852 ÷ 66 
The aim is to understand the frequency of 66 in 66852.

On to step 1:
The number 66 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 66

On to step 2:
The number 66 fits into 66 1 times, leaving a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 66 from 66 and we're left with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 66

Going ahead to step 3:
The number 66 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 66

Step 4:
When dividing 85 by 66, we get 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 101.0
Deduct 66 from 85 and we're left with 19.
Include the next digit (2) from the dividend after 19, then repeat: 192 / 66

Going ahead to step 5:
192 divided by 66 is 2 with a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 1012.0
Subtract 132 from 192 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 6:
66 can be fit into 600 9 times, resulting in a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 1012.9
The remainder is 6 after subtracting 594 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
66 can be fit into 60 0 times, resulting in a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 1012.9
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 8:
66 can be fit into 600 9 times, resulting in a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 1012.909
If we subtract 594 from 600, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 9:
When dividing 60 by 66, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 1012.909
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 10:
66 can be fit into 600 9 times, resulting in a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 1012.90909
Subtracting 594 from 600 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 11:
When dividing 60 by 66, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 1012.90909
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 12:
600 divided by 66 is 9 with a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 1012.9090909
Deduct 594 from 600 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 13:
If we divide 60 by 66, we get 0 and a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 1012.9090909
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

In conclusion, the division gives 1012.9090909 with a balance of 6e-08.