We're dividing 109930 by 66 
The aim is to understand the frequency of 66 in 109930.

Step 1:
The number 66 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 66

On to step 2:
The number 66 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 10, we get 10.
Bring next digit (9) of the dividend behind the 10 and repeat the process: 109 / 66

Step 3:
The number 66 fits into 109 1 times, leaving a remainder of 43.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 66 from 109 and we're left with 43.
Bring next digit (9) of the dividend behind the 43 and repeat the process: 439 / 66

Step 4:
66 goes into 439 6 times with a remainder of 43.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we take 396 away from 439, we end up with 43.
Take the next digit (3) from the dividend and append it to 43, then repeat: 433 / 66

Going ahead to step 5:
433 divided by 66 is 6 with a remainder of 37.
The number 6 becomes the next digit in our result. 
Result so far: 166.0
If we subtract 396 from 433, we get 37.
Bring next digit (0) of the dividend behind the 37 and repeat the process: 370 / 66

Step 6:
66 can be fit into 370 5 times, resulting in a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 1665.0
Deduct 330 from 370 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 7:
If we divide 400 by 66, we get 6 and a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 1665.6
If we subtract 396 from 400, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
When dividing 40 by 66, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 1665.6
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 9:
If we divide 400 by 66, we get 6 and a remainder of 4.
The next digit of our result is 6. 
Result so far: 1665.606
Deduct 396 from 400 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
When dividing 40 by 66, we get 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 1665.606
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 11:
400 divided by 66 is 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 1665.60606
If we subtract 396 from 400, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 12:
The number 66 fits into 40 0 times, leaving a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 1665.60606
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 13:
66 goes into 400 6 times with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 1665.6060606
Deduct 396 from 400 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 14:
When dividing 40 by 66, we get 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 1665.6060606
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 1665.6060606 with a remainder of 4e-08.