We look at the division of 280915 by 12 
The aim is to understand the frequency of 12 in 280915.

Moving on to step 1:
The number 12 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 12

Let's proceed to step 2:
12 goes into 28 2 times with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 24 from 28, we get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 12

Advancing to step 3:
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: 23.0
If we take 36 away from 40, we end up with 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 12

On to step 4:
49 divided by 12 is 4 with a remainder of 1.
The next digit of our result is 4. 
Result so far: 234.0
Deduct 48 from 49 and we're left with 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 12

Let's proceed to step 5:
11 divided by 12 is 0 with a remainder of 11.
Write down 0 as next digit of the result. 
Result so far: 2340.0
If we subtract 0 from 11, we get 11.
Include the next digit (5) from the dividend after 11, then repeat: 115 / 12

Going ahead to step 6:
115 divided by 12 is 9 with a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 23409.0
Subtracting 108 from 115 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
If we divide 70 by 12, we get 5 and a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 23409.5
Subtracting 60 from 70 leaves us 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.

Step 8:
12 goes into 100 8 times with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 23409.58
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.

Step 9:
40 divided by 12 is 3 with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 23409.583
Subtracting 36 from 40 leaves us 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.

Advancing to step 10:
12 goes into 40 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 23409.5833
If we subtract 36 from 40, 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.

In conclusion, the division gives 23409.5833 with a balance of 4e-05.