We're dividing 470180 by 90 
The aim is to understand the frequency of 90 in 470180.

Let's proceed to step 1:
If we divide 4 by 90, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 90

Moving on to step 2:
90 goes into 47 0 times with a remainder of 47.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 47, we end up with 47.
Grab the next digit (0) from the dividend, add it to 47, then carry on: 470 / 90

Let's proceed to step 3:
The number 90 fits into 470 5 times, leaving a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 20 after subtracting 450 from 470.
Bring next digit (1) of the dividend behind the 20 and repeat the process: 201 / 90

Going ahead to step 4:
90 can be fit into 201 2 times, resulting in a remainder of 21.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
The remainder is 21 after subtracting 180 from 201.
Fetch the next digit (8) from the dividend, attach it to 21 and continue: 218 / 90

Step 5:
90 can be fit into 218 2 times, resulting in a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 522.0
If we take 180 away from 218, we end up with 38.
Append the next digit (0) from the dividend to 38 and continue with: 380 / 90

Step 6:
If we divide 380 by 90, we get 4 and a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 5224.0
If we subtract 360 from 380, 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.

Going ahead to step 7:
When dividing 200 by 90, we get 2 with a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 5224.2
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.

Advancing 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: 5224.22
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.

After the division, we end up with 5224.22 and a remainder of 0.02.