We divide 446336 by 90
The aim is to understand the frequency of 90 in 446336.

Let's proceed to step 1:
When dividing 4 by 90, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 90

Moving on to step 2:
When dividing 44 by 90, we get 0 with a remainder of 44.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 44 after subtracting 0 from 44.
Fetch the next digit (6) from the dividend, attach it to 44 and continue: 446 / 90

Moving on to step 3:
If we divide 446 by 90, we get 4 and a remainder of 86.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 360 away from 446, we end up with 86.
Append the next digit (3) from the dividend to 86 and continue with: 863 / 90

Going ahead to step 4:
If we divide 863 by 90, we get 9 and a remainder of 53.
The next digit of our result is 9. 
Result so far: 49.0
If we take 810 away from 863, we end up with 53.
Append the next digit (3) from the dividend to 53 and continue with: 533 / 90

Step 5:
90 can be fit into 533 5 times, resulting in a remainder of 83.
The next digit of our result is 5. 
Result so far: 495.0
Deduct 450 from 533 and we're left with 83.
Take the next digit (6) from the dividend and append it to 83, then repeat: 836 / 90

Advancing to step 6:
836 divided by 90 is 9 with a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 4959.0
If we subtract 810 from 836, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 7:
If we divide 260 by 90, we get 2 and a remainder of 80.
The next digit of our result is 2. 
Result so far: 4959.2
Subtract 180 from 260 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 8:
When dividing 800 by 90, we get 8 with a remainder of 80.
The next digit of our result is 8. 
Result so far: 4959.28
If we subtract 720 from 800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 9:
800 divided by 90 is 8 with a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 4959.288
Subtracting 720 from 800 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.

The final outcome is 4959.288, with a leftover of 0.008.