We divide 846304 by 90
The aim is to understand the frequency of 90 in 846304.

Moving on to step 1:
8 divided by 90 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 90

Going ahead to step 2:
90 can be fit into 84 0 times, resulting in a remainder of 84.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 84, we get 84.
Include the next digit (6) from the dividend after 84, then repeat: 846 / 90

Going ahead to step 3:
90 can be fit into 846 9 times, resulting in a remainder of 36.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtracting 810 from 846 leaves us with 36.
Fetch the next digit (3) from the dividend, attach it to 36 and continue: 363 / 90

Moving on to step 4:
363 divided by 90 is 4 with a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 94.0
If we take 360 away from 363, we end up with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 90

Moving on to step 5:
90 goes into 30 0 times with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 940.0
Deduct 0 from 30 and we're left with 30.
Take the next digit (4) from the dividend and append it to 30, then repeat: 304 / 90

Going ahead to step 6:
304 divided by 90 is 3 with a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 9403.0
If we take 270 away from 304, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 7:
When dividing 340 by 90, we get 3 with a remainder of 70.
Put 3 as the next digit of the answer. 
Result so far: 9403.3
The remainder is 70 after subtracting 270 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 8:
When dividing 700 by 90, we get 7 with a remainder of 70.
Write down 7 as next digit of the result. 
Result so far: 9403.37
Subtract 630 from 700 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 9:
90 goes into 700 7 times with a remainder of 70.
Put 7 as the next digit of the answer. 
Result so far: 9403.377
Subtract 630 from 700 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

In conclusion, the division gives 9403.377 with a balance of 0.007.