Let's divide 717224 by 90
The aim is to understand the frequency of 90 in 717224.

On to step 1:
If we divide 7 by 90, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 90

On to step 2:
90 goes into 71 0 times with a remainder of 71.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 71 leaves us with 71.
Take the next digit (7) from the dividend and append it to 71, then repeat: 717 / 90

Advancing to step 3:
717 divided by 90 is 7 with a remainder of 87.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 630 from 717 to get 87.
Include the next digit (2) from the dividend after 87, then repeat: 872 / 90

Step 4:
If we divide 872 by 90, we get 9 and a remainder of 62.
Put 9 as the next digit of the answer. 
Result so far: 79.0
Deduct 810 from 872 and we're left with 62.
Bring next digit (2) of the dividend behind the 62 and repeat the process: 622 / 90

Going ahead to step 5:
90 can be fit into 622 6 times, resulting in a remainder of 82.
Write down 6 as next digit of the result. 
Result so far: 796.0
If we take 540 away from 622, we end up with 82.
Take the next digit (4) from the dividend and append it to 82, then repeat: 824 / 90

On to step 6:
The number 90 fits into 824 9 times, leaving a remainder of 14.
Use 9 as the next digit of our solution. 
Result so far: 7969.0
Subtracting 810 from 824 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 7:
140 divided by 90 is 1 with a remainder of 50.
The number 1 becomes the next digit in our result. 
Result so far: 7969.1
Subtract 90 from 140 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 8:
500 divided by 90 is 5 with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 7969.15
Deduct 450 from 500 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 9:
The number 90 fits into 500 5 times, leaving a remainder of 50.
The next digit of our result is 5. 
Result so far: 7969.155
Subtracting 450 from 500 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

In conclusion, the division gives 7969.155 with a balance of 0.005.