35966 divided by 12 
The aim is to understand the frequency of 12 in 35966.

Going ahead to step 1:
12 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 12

Moving on to step 2:
35 divided by 12 is 2 with a remainder of 11.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 24 from 35, we get 11.
Bring next digit (9) of the dividend behind the 11 and repeat the process: 119 / 12

Let's proceed to step 3:
12 can be fit into 119 9 times, resulting in a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
Deduct 108 from 119 and we're left with 11.
Append the next digit (6) from the dividend to 11 and continue with: 116 / 12

Step 4:
12 can be fit into 116 9 times, resulting in a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 299.0
The remainder is 8 after subtracting 108 from 116.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 12

Let's proceed to step 5:
12 goes into 86 7 times with a remainder of 2.
The next digit of our result is 7. 
Result so far: 2997.0
If we take 84 away from 86, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 6:
12 goes into 20 1 times with a remainder of 8.
The next digit of our result is 1. 
Result so far: 2997.1
If we take 12 away from 20, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 7:
12 goes into 80 6 times with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 2997.16
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 8:
The number 12 fits into 80 6 times, leaving a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 2997.166
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 2997.166 with a remaining 0.0008.