We divide 316785 by 90
The aim is to understand the frequency of 90 in 316785.

Going ahead to step 1:
3 divided by 90 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 90

Step 2:
31 divided by 90 is 0 with a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Include the next digit (6) from the dividend after 31, then repeat: 316 / 90

Step 3:
When dividing 316 by 90, we get 3 with a remainder of 46.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 270 away from 316, we end up with 46.
Take the next digit (7) from the dividend and append it to 46, then repeat: 467 / 90

Going ahead to step 4:
When dividing 467 by 90, we get 5 with a remainder of 17.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
If we take 450 away from 467, we end up with 17.
Grab the next digit (8) from the dividend, add it to 17, then carry on: 178 / 90

Going ahead to step 5:
If we divide 178 by 90, we get 1 and a remainder of 88.
The next digit of our result is 1. 
Result so far: 351.0
Subtract 90 from 178 to get 88.
Fetch the next digit (5) from the dividend, attach it to 88 and continue: 885 / 90

Let's proceed to step 6:
885 divided by 90 is 9 with a remainder of 75.
The next digit of our result is 9. 
Result so far: 3519.0
The remainder is 75 after subtracting 810 from 885.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 7:
90 can be fit into 750 8 times, resulting in a remainder of 30.
Write down 8 as next digit of the result. 
Result so far: 3519.8
If we subtract 720 from 750, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
If we divide 300 by 90, we get 3 and a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 3519.83
If we subtract 270 from 300, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
The number 90 fits into 300 3 times, leaving a remainder of 30.
The next digit of our result is 3. 
Result so far: 3519.833
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The quotient of the division is 3519.833, and the remainder is 0.003.