Let's divide 143944 by 12
The aim is to understand the frequency of 12 in 143944.

Step 1:
12 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 12

Let's proceed to step 2:
If we divide 14 by 12, we get 1 and a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 12 from 14, we get 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 12

Moving on to step 3:
When dividing 23 by 12, we get 1 with a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 12 from 23 to get 11.
Bring next digit (9) of the dividend behind the 11 and repeat the process: 119 / 12

Advancing to step 4:
When dividing 119 by 12, we get 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 119.0
Subtract 108 from 119 to get 11.
Grab the next digit (4) from the dividend, add it to 11, then carry on: 114 / 12

Advancing to step 5:
12 can be fit into 114 9 times, resulting in a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 1199.0
Subtracting 108 from 114 leaves us with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 12

Going ahead to step 6:
12 can be fit into 64 5 times, resulting in a remainder of 4.
The next digit of our result is 5. 
Result so far: 11995.0
Subtract 60 from 64 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.

Let's proceed to step 7:
12 can be fit into 40 3 times, resulting in a remainder of 4.
The next digit of our result is 3. 
Result so far: 11995.3
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.

Moving on to step 8:
12 goes into 40 3 times with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 11995.33
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 11995.33 with a balance of 0.004.