We look at the division of 246221 by 30 
The aim is to understand the frequency of 30 in 246221.

Advancing to step 1:
30 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (4) from the dividend after 2, then repeat: 24 / 30

On to step 2:
24 divided by 30 is 0 with a remainder of 24.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 24, we get 24.
Grab the next digit (6) from the dividend, add it to 24, then carry on: 246 / 30

Going ahead to step 3:
The number 30 fits into 246 8 times, leaving a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 240 from 246 to get 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 30

On to step 4:
30 goes into 62 2 times with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 82.0
If we subtract 60 from 62, we get 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 30

Advancing to step 5:
If we divide 22 by 30, we get 0 and a remainder of 22.
Put 0 as the next digit of the answer. 
Result so far: 820.0
Subtract 0 from 22 to get 22.
Fetch the next digit (1) from the dividend, attach it to 22 and continue: 221 / 30

On to step 6:
The number 30 fits into 221 7 times, leaving a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 8207.0
Subtracting 210 from 221 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
110 divided by 30 is 3 with a remainder of 20.
Put 3 as the next digit of the answer. 
Result so far: 8207.3
If we take 90 away from 110, we end up with 20.
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:
If we divide 200 by 30, we get 6 and a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 8207.36
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
30 goes into 200 6 times with a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 8207.366
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 8207.366 with a balance of 0.002.