We're dividing 956808 by 90 
The aim is to understand the frequency of 90 in 956808.

Step 1:
When dividing 9 by 90, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 90

Advancing to step 2:
90 goes into 95 1 times with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 5 after subtracting 90 from 95.
Fetch the next digit (6) from the dividend, attach it to 5 and continue: 56 / 90

Step 3:
When dividing 56 by 90, we get 0 with a remainder of 56.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 56 to get 56.
Grab the next digit (8) from the dividend, add it to 56, then carry on: 568 / 90

Let's proceed to step 4:
568 divided by 90 is 6 with a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
Subtracting 540 from 568 leaves us with 28.
Include the next digit (0) from the dividend after 28, then repeat: 280 / 90

On to step 5:
90 can be fit into 280 3 times, resulting in a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 1063.0
Subtracting 270 from 280 leaves us with 10.
Take the next digit (8) from the dividend and append it to 10, then repeat: 108 / 90

Let's proceed to step 6:
90 goes into 108 1 times with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 10631.0
The remainder is 18 after subtracting 90 from 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 7:
If we divide 180 by 90, we get 2 and a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 10631.2
Deduct 180 from 180 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
90 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 10631.2
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
If we divide 0 by 90, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10631.2
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 10631.2 with a balance of 0.0.