We divide 16463900 by 90
The aim is to understand the frequency of 90 in 16463900.

Step 1:
The number 90 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 90

Step 2:
The number 90 fits into 16 0 times, leaving a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Fetch the next digit (4) from the dividend, attach it to 16 and continue: 164 / 90

Step 3:
90 goes into 164 1 times with a remainder of 74.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 90 from 164, we get 74.
Fetch the next digit (6) from the dividend, attach it to 74 and continue: 746 / 90

Step 4:
If we divide 746 by 90, we get 8 and a remainder of 26.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
The remainder is 26 after subtracting 720 from 746.
Include the next digit (3) from the dividend after 26, then repeat: 263 / 90

Moving on to step 5:
When dividing 263 by 90, we get 2 with a remainder of 83.
Write down 2 as next digit of the result. 
Result so far: 182.0
Subtracting 180 from 263 leaves us with 83.
Bring next digit (9) of the dividend behind the 83 and repeat the process: 839 / 90

Going ahead to step 6:
When dividing 839 by 90, we get 9 with a remainder of 29.
Use 9 as the next digit of our solution. 
Result so far: 1829.0
If we subtract 810 from 839, we get 29.
Append the next digit (0) from the dividend to 29 and continue with: 290 / 90

Step 7:
90 goes into 290 3 times with a remainder of 20.
The next digit of our result is 3. 
Result so far: 18293.0
The remainder is 20 after subtracting 270 from 290.
Bring next digit (0) of the dividend behind the 20 and repeat the process: 200 / 90

Going ahead to step 8:
200 divided by 90 is 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 182932.0
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.

Step 9:
The number 90 fits into 200 2 times, leaving a remainder of 20.
The next digit of our result is 2. 
Result so far: 182932.2
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 10:
If we divide 200 by 90, we get 2 and a remainder of 20.
Record the quotient 2 as the next digit in the result. 
Result so far: 182932.22
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.

In conclusion, the division gives 182932.22 with a balance of 0.02.