We divide 70569 by 90
The aim is to understand the frequency of 90 in 70569.

Let's proceed to step 1:
7 divided by 90 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 90

Advancing to step 2:
The number 90 fits into 70 0 times, leaving a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 70 and we're left with 70.
Take the next digit (5) from the dividend and append it to 70, then repeat: 705 / 90

Step 3:
90 can be fit into 705 7 times, resulting in a remainder of 75.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 75 after subtracting 630 from 705.
Include the next digit (6) from the dividend after 75, then repeat: 756 / 90

On to step 4:
90 can be fit into 756 8 times, resulting in a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
Deduct 720 from 756 and we're left with 36.
Fetch the next digit (9) from the dividend, attach it to 36 and continue: 369 / 90

Advancing to step 5:
If we divide 369 by 90, we get 4 and a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 784.0
Subtracting 360 from 369 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 6:
The number 90 fits into 90 1 times, leaving a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 784.1
If we take 90 away from 90, we end up 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 7:
If we divide 0 by 90, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 784.1
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
0 divided by 90 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 784.1
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.

After the division, we end up with 784.1 and a remainder of 0.0.