364493 ÷ 90 
The aim is to understand the frequency of 90 in 364493.

Let's proceed to step 1:
The number 90 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 90

Moving on to step 2:
90 can be fit into 36 0 times, resulting in a remainder of 36.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 36 leaves us with 36.
Bring next digit (4) of the dividend behind the 36 and repeat the process: 364 / 90

Advancing to step 3:
The number 90 fits into 364 4 times, leaving a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 360 from 364 leaves us with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 90

Moving on to step 4:
90 goes into 44 0 times with a remainder of 44.
Use 0 as the next digit of our solution. 
Result so far: 40.0
If we subtract 0 from 44, we get 44.
Fetch the next digit (9) from the dividend, attach it to 44 and continue: 449 / 90

Let's proceed to step 5:
When dividing 449 by 90, we get 4 with a remainder of 89.
Write down 4 as next digit of the result. 
Result so far: 404.0
If we take 360 away from 449, we end up with 89.
Bring next digit (3) of the dividend behind the 89 and repeat the process: 893 / 90

Advancing to step 6:
The number 90 fits into 893 9 times, leaving a remainder of 83.
Record the quotient 9 as the next digit in the result. 
Result so far: 4049.0
Deduct 810 from 893 and we're left with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 7:
If we divide 830 by 90, we get 9 and a remainder of 20.
Use 9 as the next digit of our solution. 
Result so far: 4049.9
If we subtract 810 from 830, 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.

Let's proceed to step 8:
If we divide 200 by 90, we get 2 and a remainder of 20.
The next digit of our result is 2. 
Result so far: 4049.92
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.

Let's proceed to step 9:
200 divided by 90 is 2 with a remainder of 20.
Record the quotient 2 as the next digit in the result. 
Result so far: 4049.922
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.

Our division results in 4049.922 with a remaining 0.002.