Let's divide 40133 by 90
The aim is to understand the frequency of 90 in 40133.

Let's proceed to step 1:
If we divide 4 by 90, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 90

Advancing to step 2:
40 divided by 90 is 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Bring next digit (1) of the dividend behind the 40 and repeat the process: 401 / 90

Advancing to step 3:
When dividing 401 by 90, we get 4 with a remainder of 41.
The next digit of our result is 4. 
Result so far: 4.0
If we take 360 away from 401, we end up with 41.
Take the next digit (3) from the dividend and append it to 41, then repeat: 413 / 90

Advancing to step 4:
90 goes into 413 4 times with a remainder of 53.
The number 4 becomes the next digit in our result. 
Result so far: 44.0
If we subtract 360 from 413, we get 53.
Fetch the next digit (3) from the dividend, attach it to 53 and continue: 533 / 90

Step 5:
533 divided by 90 is 5 with a remainder of 83.
The next digit of our result is 5. 
Result so far: 445.0
If we take 450 away from 533, we end up with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 6:
90 goes into 830 9 times with a remainder of 20.
Use 9 as the next digit of our solution. 
Result so far: 445.9
If we subtract 810 from 830, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 7:
90 goes into 200 2 times with a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 445.92
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
When dividing 200 by 90, we get 2 with a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 445.922
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 445.922, with a leftover of 0.002.