We divide 146468 by 90
The aim is to understand the frequency of 90 in 146468.

On to step 1:
90 goes into 1 0 times with 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.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 90

Step 2:
If we divide 14 by 90, we get 0 and a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Fetch the next digit (6) from the dividend, attach it to 14 and continue: 146 / 90

Let's proceed to step 3:
The number 90 fits into 146 1 times, leaving a remainder of 56.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 90 from 146 and we're left with 56.
Grab the next digit (4) from the dividend, add it to 56, then carry on: 564 / 90

Let's proceed to step 4:
564 divided by 90 is 6 with a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
Subtract 540 from 564 to get 24.
Take the next digit (6) from the dividend and append it to 24, then repeat: 246 / 90

Let's proceed to step 5:
246 divided by 90 is 2 with a remainder of 66.
Put 2 as the next digit of the answer. 
Result so far: 162.0
The remainder is 66 after subtracting 180 from 246.
Append the next digit (8) from the dividend to 66 and continue with: 668 / 90

Step 6:
668 divided by 90 is 7 with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 1627.0
If we subtract 630 from 668, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 7:
90 can be fit into 380 4 times, resulting in a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 1627.4
Subtracting 360 from 380 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.

Going ahead to step 8:
90 goes into 200 2 times with a remainder of 20.
Record the quotient 2 as the next digit in the result. 
Result so far: 1627.42
Subtract 180 from 200 to 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:
90 can be fit into 200 2 times, resulting in a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 1627.422
If we take 180 away from 200, we end up 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.

After the division, we end up with 1627.422 and a remainder of 0.002.