361834 ÷ 12 
The aim is to understand the frequency of 12 in 361834.

Let's proceed to step 1:
If we divide 3 by 12, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 12

On to step 2:
36 divided by 12 is 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 36 from 36 leaves us with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 12

Going ahead to step 3:
When dividing 1 by 12, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 30.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 12

Step 4:
18 divided by 12 is 1 with a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 301.0
If we take 12 away from 18, we end up with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 12

Moving on to step 5:
The number 12 fits into 63 5 times, leaving a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 3015.0
If we subtract 60 from 63, we get 3.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 12

Step 6:
When dividing 34 by 12, we get 2 with a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 30152.0
If we subtract 24 from 34, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
When dividing 100 by 12, we get 8 with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 30152.8
Subtract 96 from 100 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.

Moving on to step 8:
12 can be fit into 40 3 times, resulting in a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 30152.83
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.

On to step 9:
12 can be fit into 40 3 times, resulting in a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 30152.833
If we take 36 away from 40, we end up 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.

The final result is 30152.833 with a remainder of 0.0004.