417220 ÷ 18 
The aim is to understand the frequency of 18 in 417220.

Let's proceed to step 1:
18 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 18

Advancing to step 2:
If we divide 41 by 18, we get 2 and a remainder of 5.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 36 away from 41, we end up with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 18

Step 3:
The number 18 fits into 57 3 times, leaving a remainder of 3.
The next digit of our result is 3. 
Result so far: 23.0
If we subtract 54 from 57, we get 3.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 18

Advancing to step 4:
If we divide 32 by 18, we get 1 and a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 231.0
Subtract 18 from 32 to get 14.
Grab the next digit (2) from the dividend, add it to 14, then carry on: 142 / 18

Step 5:
If we divide 142 by 18, we get 7 and a remainder of 16.
Record the quotient 7 as the next digit in the result. 
Result so far: 2317.0
The remainder is 16 after subtracting 126 from 142.
Take the next digit (0) from the dividend and append it to 16, then repeat: 160 / 18

On to step 6:
The number 18 fits into 160 8 times, leaving a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 23178.0
If we subtract 144 from 160, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 7:
The number 18 fits into 160 8 times, leaving a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 23178.8
If we subtract 144 from 160, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 8:
The number 18 fits into 160 8 times, leaving a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 23178.88
Deduct 144 from 160 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 23178.88 with a balance of 0.016.