Let's divide 44549 by 90
The aim is to understand the frequency of 90 in 44549.

Step 1:
If we divide 4 by 90, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (4) from the dividend to 4 and continue with: 44 / 90

Step 2:
If we divide 44 by 90, we get 0 and a remainder of 44.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 44 leaves us with 44.
Bring next digit (5) of the dividend behind the 44 and repeat the process: 445 / 90

Step 3:
If we divide 445 by 90, we get 4 and a remainder of 85.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 360 from 445 and we're left with 85.
Take the next digit (4) from the dividend and append it to 85, then repeat: 854 / 90

Going ahead to step 4:
854 divided by 90 is 9 with a remainder of 44.
The next digit of our result is 9. 
Result so far: 49.0
If we take 810 away from 854, we end up with 44.
Include the next digit (9) from the dividend after 44, then repeat: 449 / 90

Going ahead to step 5:
449 divided by 90 is 4 with a remainder of 89.
Record the quotient 4 as the next digit in the result. 
Result so far: 494.0
The remainder is 89 after subtracting 360 from 449.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Going ahead to step 6:
The number 90 fits into 890 9 times, leaving a remainder of 80.
The number 9 becomes the next digit in our result. 
Result so far: 494.9
Subtracting 810 from 890 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 7:
90 goes into 800 8 times with a remainder of 80.
Write down 8 as next digit of the result. 
Result so far: 494.98
The remainder is 80 after subtracting 720 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 8:
90 goes into 800 8 times with a remainder of 80.
Write down 8 as next digit of the result. 
Result so far: 494.988
The remainder is 80 after subtracting 720 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Our division results in 494.988 with a remaining 0.008.