We're dividing 411164 by 90 
The aim is to understand the frequency of 90 in 411164.

Step 1:
90 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 90

Step 2:
When dividing 41 by 90, we get 0 with a remainder of 41.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 41, we end up with 41.
Append the next digit (1) from the dividend to 41 and continue with: 411 / 90

Let's proceed to step 3:
The number 90 fits into 411 4 times, leaving a remainder of 51.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 360 away from 411, we end up with 51.
Include the next digit (1) from the dividend after 51, then repeat: 511 / 90

Step 4:
When dividing 511 by 90, we get 5 with a remainder of 61.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
The remainder is 61 after subtracting 450 from 511.
Include the next digit (6) from the dividend after 61, then repeat: 616 / 90

Going ahead to step 5:
The number 90 fits into 616 6 times, leaving a remainder of 76.
Use 6 as the next digit of our solution. 
Result so far: 456.0
If we subtract 540 from 616, we get 76.
Include the next digit (4) from the dividend after 76, then repeat: 764 / 90

Let's proceed to step 6:
The number 90 fits into 764 8 times, leaving a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 4568.0
Subtracting 720 from 764 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 7:
When dividing 440 by 90, we get 4 with a remainder of 80.
Record the quotient 4 as the next digit in the result. 
Result so far: 4568.4
Subtracting 360 from 440 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 8:
The number 90 fits into 800 8 times, leaving a remainder of 80.
Record the quotient 8 as the next digit in the result. 
Result so far: 4568.48
Subtract 720 from 800 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 9:
The number 90 fits into 800 8 times, leaving a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 4568.488
Subtract 720 from 800 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final result is 4568.488 with a remainder of 0.008.