568578 divided by 90 
The aim is to understand the frequency of 90 in 568578.

Moving on to step 1:
When dividing 5 by 90, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 90

Step 2:
56 divided by 90 is 0 with a remainder of 56.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 56, we end up with 56.
Bring next digit (8) of the dividend behind the 56 and repeat the process: 568 / 90

On to step 3:
The number 90 fits into 568 6 times, leaving a remainder of 28.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 540 from 568, we get 28.
Include the next digit (5) from the dividend after 28, then repeat: 285 / 90

On to step 4:
When dividing 285 by 90, we get 3 with a remainder of 15.
The next digit of our result is 3. 
Result so far: 63.0
Deduct 270 from 285 and we're left with 15.
Take the next digit (7) from the dividend and append it to 15, then repeat: 157 / 90

On to step 5:
90 can be fit into 157 1 times, resulting in a remainder of 67.
Put 1 as the next digit of the answer. 
Result so far: 631.0
Subtracting 90 from 157 leaves us with 67.
Fetch the next digit (8) from the dividend, attach it to 67 and continue: 678 / 90

Advancing to step 6:
When dividing 678 by 90, we get 7 with a remainder of 48.
The number 7 becomes the next digit in our result. 
Result so far: 6317.0
Deduct 630 from 678 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 7:
90 can be fit into 480 5 times, resulting in a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 6317.5
Deduct 450 from 480 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 8:
When dividing 300 by 90, we get 3 with a remainder of 30.
The next digit of our result is 3. 
Result so far: 6317.53
The remainder is 30 after subtracting 270 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 9:
90 can be fit into 300 3 times, resulting in a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 6317.533
If we take 270 away from 300, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

In conclusion, the division gives 6317.533 with a balance of 0.003.