205781 ÷ 12 
The aim is to understand the frequency of 12 in 205781.

Step 1:
12 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 12

Going ahead to step 2:
The number 12 fits into 20 1 times, leaving a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 12 from 20 and we're left with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 12

Moving on to step 3:
When dividing 85 by 12, we get 7 with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 17.0
Deduct 84 from 85 and we're left with 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 12

Step 4:
If we divide 17 by 12, we get 1 and a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 171.0
Subtracting 12 from 17 leaves us with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 12

Let's proceed to step 5:
12 goes into 58 4 times with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 1714.0
Subtracting 48 from 58 leaves us with 10.
Take the next digit (1) from the dividend and append it to 10, then repeat: 101 / 12

Step 6:
When dividing 101 by 12, we get 8 with a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 17148.0
Deduct 96 from 101 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 7:
50 divided by 12 is 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 17148.4
Subtract 48 from 50 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 8:
12 can be fit into 20 1 times, resulting in a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 17148.41
The remainder is 8 after subtracting 12 from 20.
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 9:
If we divide 80 by 12, we get 6 and a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 17148.416
Deduct 72 from 80 and we're left 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.

Moving on to step 10:
If we divide 80 by 12, we get 6 and a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 17148.4166
If we subtract 72 from 80, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 17148.4166, with a leftover of 8e-05.