218469 divided by 90 
The aim is to understand the frequency of 90 in 218469.

Step 1:
The number 90 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 90

Step 2:
When dividing 21 by 90, we get 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Take the next digit (8) from the dividend and append it to 21, then repeat: 218 / 90

Step 3:
218 divided by 90 is 2 with a remainder of 38.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 180 from 218 leaves us with 38.
Include the next digit (4) from the dividend after 38, then repeat: 384 / 90

On to step 4:
384 divided by 90 is 4 with a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 24.0
If we subtract 360 from 384, we get 24.
Take the next digit (6) from the dividend and append it to 24, then repeat: 246 / 90

Moving on to step 5:
246 divided by 90 is 2 with a remainder of 66.
The next digit of our result is 2. 
Result so far: 242.0
If we subtract 180 from 246, we get 66.
Include the next digit (9) from the dividend after 66, then repeat: 669 / 90

Going ahead to step 6:
When dividing 669 by 90, we get 7 with a remainder of 39.
Write down 7 as next digit of the result. 
Result so far: 2427.0
Subtracting 630 from 669 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 7:
The number 90 fits into 390 4 times, leaving a remainder of 30.
The next digit of our result is 4. 
Result so far: 2427.4
The remainder is 30 after subtracting 360 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
90 can be fit into 300 3 times, resulting in a remainder of 30.
The next digit of our result is 3. 
Result so far: 2427.43
If we take 270 away from 300, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 9:
90 can be fit into 300 3 times, resulting in a remainder of 30.
Record the quotient 3 as the next digit in the result. 
Result so far: 2427.433
If we subtract 270 from 300, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Our division results in 2427.433 with a remaining 0.003.