We're dividing 595092 by 90 
The aim is to understand the frequency of 90 in 595092.

Advancing to step 1:
The number 90 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 90

Step 2:
59 divided by 90 is 0 with a remainder of 59.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 59 after subtracting 0 from 59.
Grab the next digit (5) from the dividend, add it to 59, then carry on: 595 / 90

Moving on to step 3:
90 goes into 595 6 times with a remainder of 55.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtracting 540 from 595 leaves us with 55.
Bring next digit (0) of the dividend behind the 55 and repeat the process: 550 / 90

Step 4:
550 divided by 90 is 6 with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 66.0
If we subtract 540 from 550, we get 10.
Append the next digit (9) from the dividend to 10 and continue with: 109 / 90

Let's proceed to step 5:
90 goes into 109 1 times with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 661.0
Subtracting 90 from 109 leaves us with 19.
Bring next digit (2) of the dividend behind the 19 and repeat the process: 192 / 90

On to step 6:
The number 90 fits into 192 2 times, leaving a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 6612.0
If we subtract 180 from 192, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
When dividing 120 by 90, we get 1 with a remainder of 30.
The number 1 becomes the next digit in our result. 
Result so far: 6612.1
Deduct 90 from 120 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.

On to step 8:
300 divided by 90 is 3 with a remainder of 30.
Record the quotient 3 as the next digit in the result. 
Result so far: 6612.13
Subtracting 270 from 300 leaves us 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 9:
90 goes into 300 3 times with a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 6612.133
Subtracting 270 from 300 leaves us 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.

After the division, we end up with 6612.133 and a remainder of 0.003.