280567 ÷ 18 
The aim is to understand the frequency of 18 in 280567.

Let's proceed to step 1:
18 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 18

Moving on to step 2:
28 divided by 18 is 1 with a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 18 from 28, we get 10.
Append the next digit (0) from the dividend to 10 and continue with: 100 / 18

Let's proceed to step 3:
18 can be fit into 100 5 times, resulting in a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtract 90 from 100 to get 10.
Fetch the next digit (5) from the dividend, attach it to 10 and continue: 105 / 18

Let's proceed to step 4:
18 goes into 105 5 times with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 155.0
The remainder is 15 after subtracting 90 from 105.
Take the next digit (6) from the dividend and append it to 15, then repeat: 156 / 18

Let's proceed to step 5:
18 can be fit into 156 8 times, resulting in a remainder of 12.
The next digit of our result is 8. 
Result so far: 1558.0
Deduct 144 from 156 and we're left with 12.
Bring next digit (7) of the dividend behind the 12 and repeat the process: 127 / 18

On to step 6:
When dividing 127 by 18, we get 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 15587.0
If we take 126 away from 127, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 7:
When dividing 10 by 18, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 15587.0
Deduct 0 from 10 and we're left 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.

Advancing to step 8:
100 divided by 18 is 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 15587.05
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
If we divide 100 by 18, we get 5 and a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 15587.055
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 15587.055 and a remainder of 0.001.