Let's divide 401199 by 12
The aim is to understand the frequency of 12 in 401199.

Advancing to step 1:
12 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 12

Moving on to step 2:
12 can be fit into 40 3 times, resulting in a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 36 from 40, we get 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 12

Advancing to step 3:
When dividing 41 by 12, we get 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 33.0
Subtracting 36 from 41 leaves us with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 12

On to step 4:
If we divide 51 by 12, we get 4 and a remainder of 3.
Use 4 as the next digit of our solution. 
Result so far: 334.0
Subtract 48 from 51 to get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 12

Moving on to step 5:
12 can be fit into 39 3 times, resulting in a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 3343.0
Subtract 36 from 39 to get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 12

On to step 6:
The number 12 fits into 39 3 times, leaving a remainder of 3.
The next digit of our result is 3. 
Result so far: 33433.0
If we take 36 away from 39, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
When dividing 30 by 12, we get 2 with a remainder of 6.
The next digit of our result is 2. 
Result so far: 33433.2
The remainder is 6 after subtracting 24 from 30.
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 8:
12 goes into 60 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 33433.25
If we take 60 away from 60, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
The number 12 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 33433.25
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
The number 12 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 33433.25
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 33433.25 with a remaining 0.0.