Let's divide 261359 by 30
The aim is to understand the frequency of 30 in 261359.

Moving on to step 1:
The number 30 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 30

Step 2:
30 goes into 26 0 times with a remainder of 26.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 26 after subtracting 0 from 26.
Include the next digit (1) from the dividend after 26, then repeat: 261 / 30

Going ahead to step 3:
When dividing 261 by 30, we get 8 with a remainder of 21.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 240 from 261, we get 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 30

Moving on to step 4:
213 divided by 30 is 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 87.0
If we subtract 210 from 213, we get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 30

Going ahead to step 5:
35 divided by 30 is 1 with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 871.0
The remainder is 5 after subtracting 30 from 35.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 30

Let's proceed to step 6:
59 divided by 30 is 1 with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 8711.0
Subtract 30 from 59 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 7:
290 divided by 30 is 9 with a remainder of 20.
The next digit of our result is 9. 
Result so far: 8711.9
The remainder is 20 after subtracting 270 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
200 divided by 30 is 6 with a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 8711.96
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
30 can be fit into 200 6 times, resulting in a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 8711.966
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 8711.966 with a remainder of 0.002.