273816 ÷ 90 
The aim is to understand the frequency of 90 in 273816.

Moving on to step 1:
90 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 90

Let's proceed to step 2:
The number 90 fits into 27 0 times, leaving a remainder of 27.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 27 leaves us with 27.
Take the next digit (3) from the dividend and append it to 27, then repeat: 273 / 90

Advancing to step 3:
273 divided by 90 is 3 with a remainder of 3.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 270 from 273 to get 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 90

Step 4:
The number 90 fits into 38 0 times, leaving a remainder of 38.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
If we subtract 0 from 38, we get 38.
Include the next digit (1) from the dividend after 38, then repeat: 381 / 90

Let's proceed to step 5:
90 goes into 381 4 times with a remainder of 21.
The number 4 becomes the next digit in our result. 
Result so far: 304.0
If we take 360 away from 381, we end up with 21.
Fetch the next digit (6) from the dividend, attach it to 21 and continue: 216 / 90

Advancing to step 6:
When dividing 216 by 90, we get 2 with a remainder of 36.
Put 2 as the next digit of the answer. 
Result so far: 3042.0
Subtract 180 from 216 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 7:
If we divide 360 by 90, we get 4 and a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 3042.4
If we subtract 360 from 360, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
If we divide 0 by 90, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 3042.4
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
The number 90 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 3042.4
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 3042.4 with a remaining 0.0.