Let's divide 948070 by 90
The aim is to understand the frequency of 90 in 948070.

On to step 1:
90 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (4) from the dividend after 9, then repeat: 94 / 90

On to step 2:
90 can be fit into 94 1 times, resulting in a remainder of 4.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 4 after subtracting 90 from 94.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 90

Going ahead to step 3:
90 can be fit into 48 0 times, resulting in a remainder of 48.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 48 and we're left with 48.
Append the next digit (0) from the dividend to 48 and continue with: 480 / 90

Moving on to step 4:
90 goes into 480 5 times with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 105.0
The remainder is 30 after subtracting 450 from 480.
Bring next digit (7) of the dividend behind the 30 and repeat the process: 307 / 90

Let's proceed to step 5:
90 goes into 307 3 times with a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 1053.0
Deduct 270 from 307 and we're left with 37.
Take the next digit (0) from the dividend and append it to 37, then repeat: 370 / 90

Step 6:
90 goes into 370 4 times with a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 10534.0
Subtract 360 from 370 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
100 divided by 90 is 1 with a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 10534.1
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
100 divided by 90 is 1 with a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 10534.11
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 10534.11, with a leftover of 0.01.