243894 divided by 30 
The aim is to understand the frequency of 30 in 243894.

Step 1:
If we divide 2 by 30, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 30

Moving on to step 2:
If we divide 24 by 30, we get 0 and a remainder of 24.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 24, we get 24.
Fetch the next digit (3) from the dividend, attach it to 24 and continue: 243 / 30

Let's proceed to step 3:
The number 30 fits into 243 8 times, leaving a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 240 from 243, we get 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 30

Step 4:
If we divide 38 by 30, we get 1 and a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 81.0
Subtract 30 from 38 to get 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 30

Let's proceed to step 5:
30 can be fit into 89 2 times, resulting in a remainder of 29.
The next digit of our result is 2. 
Result so far: 812.0
If we take 60 away from 89, we end up with 29.
Fetch the next digit (4) from the dividend, attach it to 29 and continue: 294 / 30

Moving on to step 6:
30 goes into 294 9 times with a remainder of 24.
Write down 9 as next digit of the result. 
Result so far: 8129.0
If we subtract 270 from 294, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 7:
30 can be fit into 240 8 times, resulting in a remainder of 0.
The next digit of our result is 8. 
Result so far: 8129.8
Deduct 240 from 240 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.

On to step 8:
0 divided by 30 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 8129.8
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.

Moving on to step 9:
30 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8129.8
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.

Our division results in 8129.8 with a remaining 0.0.