We're dividing 287006 by 90 
The aim is to understand the frequency of 90 in 287006.

Moving on to step 1:
If we divide 2 by 90, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 90

Moving on to step 2:
When dividing 28 by 90, we get 0 with a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 28 leaves us with 28.
Append the next digit (7) from the dividend to 28 and continue with: 287 / 90

Let's proceed to step 3:
When dividing 287 by 90, we get 3 with a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 270 from 287 and we're left with 17.
Include the next digit (0) from the dividend after 17, then repeat: 170 / 90

Moving on to step 4:
The number 90 fits into 170 1 times, leaving a remainder of 80.
The next digit of our result is 1. 
Result so far: 31.0
If we subtract 90 from 170, we get 80.
Grab the next digit (0) from the dividend, add it to 80, then carry on: 800 / 90

Let's proceed to step 5:
When dividing 800 by 90, we get 8 with a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 318.0
The remainder is 80 after subtracting 720 from 800.
Take the next digit (6) from the dividend and append it to 80, then repeat: 806 / 90

Let's proceed to step 6:
The number 90 fits into 806 8 times, leaving a remainder of 86.
The number 8 becomes the next digit in our result. 
Result so far: 3188.0
Deduct 720 from 806 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 7:
If we divide 860 by 90, we get 9 and a remainder of 50.
The number 9 becomes the next digit in our result. 
Result so far: 3188.9
Subtract 810 from 860 to 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.

Moving on to step 8:
90 can be fit into 500 5 times, resulting in a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 3188.95
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 9:
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: 3188.955
If we subtract 450 from 500, 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.

In conclusion, the division gives 3188.955 with a balance of 0.005.