We're dividing 992000 by 90 
The aim is to understand the frequency of 90 in 992000.

On to step 1:
9 divided by 90 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 90

Advancing to step 2:
99 divided by 90 is 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 90 from 99 leaves us with 9.
Fetch the next digit (2) from the dividend, attach it to 9 and continue: 92 / 90

Let's proceed to step 3:
If we divide 92 by 90, we get 1 and a remainder of 2.
The next digit of our result is 1. 
Result so far: 11.0
Deduct 90 from 92 and we're left with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 90

Moving on to step 4:
90 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 110.0
Subtract 0 from 20 to get 20.
Take the next digit (0) from the dividend and append it to 20, then repeat: 200 / 90

Let's proceed to step 5:
The number 90 fits into 200 2 times, leaving a remainder of 20.
Record the quotient 2 as the next digit in the result. 
Result so far: 1102.0
If we take 180 away from 200, we end up with 20.
Take the next digit (0) from the dividend and append it to 20, then repeat: 200 / 90

Let's proceed to step 6:
The number 90 fits into 200 2 times, leaving a remainder of 20.
Record the quotient 2 as the next digit in the result. 
Result so far: 11022.0
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 7:
90 can be fit into 200 2 times, resulting in a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 11022.2
Deduct 180 from 200 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
If we divide 200 by 90, we get 2 and a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 11022.22
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 11022.22 with a remainder of 0.02.