Let's divide 911093 by 90
The aim is to understand the frequency of 90 in 911093.

Step 1:
If we divide 9 by 90, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 90

Advancing to step 2:
When dividing 91 by 90, we get 1 with a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 90 from 91 leaves us with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 90

Moving on to step 3:
90 can be fit into 11 0 times, resulting in a remainder of 11.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 11 to get 11.
Grab the next digit (0) from the dividend, add it to 11, then carry on: 110 / 90

On to step 4:
90 goes into 110 1 times with a remainder of 20.
Write down 1 as next digit of the result. 
Result so far: 101.0
Deduct 90 from 110 and we're left with 20.
Include the next digit (9) from the dividend after 20, then repeat: 209 / 90

Let's proceed to step 5:
90 can be fit into 209 2 times, resulting in a remainder of 29.
The next digit of our result is 2. 
Result so far: 1012.0
Deduct 180 from 209 and we're left with 29.
Append the next digit (3) from the dividend to 29 and continue with: 293 / 90

Step 6:
When dividing 293 by 90, we get 3 with a remainder of 23.
The next digit of our result is 3. 
Result so far: 10123.0
Subtract 270 from 293 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 7:
If we divide 230 by 90, we get 2 and a remainder of 50.
Record the quotient 2 as the next digit in the result. 
Result so far: 10123.2
If we subtract 180 from 230, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 8:
If we divide 500 by 90, we get 5 and a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 10123.25
If we take 450 away from 500, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 9:
When dividing 500 by 90, we get 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 10123.255
Subtracting 450 from 500 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

In conclusion, the division gives 10123.255 with a balance of 0.005.