Let's divide 280216 by 18
The aim is to understand the frequency of 18 in 280216.

Let's proceed to step 1:
If we divide 2 by 18, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 18

Let's proceed to step 2:
The number 18 fits into 28 1 times, leaving a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 18 from 28 and we're left with 10.
Take the next digit (0) from the dividend and append it to 10, then repeat: 100 / 18

Advancing to step 3:
18 can be fit into 100 5 times, resulting in a remainder of 10.
The next digit of our result is 5. 
Result so far: 15.0
If we take 90 away from 100, we end up with 10.
Bring next digit (2) of the dividend behind the 10 and repeat the process: 102 / 18

Advancing to step 4:
18 can be fit into 102 5 times, resulting in a remainder of 12.
The next digit of our result is 5. 
Result so far: 155.0
Subtracting 90 from 102 leaves us with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 18

On to step 5:
If we divide 121 by 18, we get 6 and a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 1556.0
Deduct 108 from 121 and we're left with 13.
Grab the next digit (6) from the dividend, add it to 13, then carry on: 136 / 18

Advancing to step 6:
136 divided by 18 is 7 with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 15567.0
Subtract 126 from 136 to 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.

On to step 7:
The number 18 fits into 100 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 15567.5
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.

Going ahead to step 8:
18 goes into 100 5 times with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 15567.55
If we take 90 away from 100, we end up 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.

The quotient of the division is 15567.55, and the remainder is 0.01.