We look at the division of 209665 by 12 
The aim is to understand the frequency of 12 in 209665.

Going ahead to step 1:
12 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 12

Let's proceed to step 2:
When dividing 20 by 12, we get 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 12 from 20 leaves us with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 12

Let's proceed to step 3:
12 can be fit into 89 7 times, resulting in a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
The remainder is 5 after subtracting 84 from 89.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 12

Moving on to step 4:
56 divided by 12 is 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 174.0
Subtract 48 from 56 to get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 12

On to step 5:
If we divide 86 by 12, we get 7 and a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 1747.0
If we take 84 away from 86, we end up with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 12

Let's proceed to step 6:
12 goes into 25 2 times with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 17472.0
If we take 24 away from 25, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
10 divided by 12 is 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 17472.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
12 can be fit into 100 8 times, resulting in a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 17472.08
If we subtract 96 from 100, 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.

Advancing to step 9:
When dividing 40 by 12, we get 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 17472.083
Subtract 36 from 40 to 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 10:
12 goes into 40 3 times with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 17472.0833
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

In conclusion, the division gives 17472.0833 with a balance of 4e-05.