We're dividing 721355 by 30 
The aim is to understand the frequency of 30 in 721355.

Moving on to step 1:
If we divide 7 by 30, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 30

Advancing to step 2:
When dividing 72 by 30, we get 2 with a remainder of 12.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 60 from 72 leaves us with 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 30

On to step 3:
30 can be fit into 121 4 times, resulting in a remainder of 1.
Put 4 as the next digit of the answer. 
Result so far: 24.0
The remainder is 1 after subtracting 120 from 121.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 30

Let's proceed to step 4:
30 can be fit into 13 0 times, resulting in a remainder of 13.
The next digit of our result is 0. 
Result so far: 240.0
Subtract 0 from 13 to get 13.
Take the next digit (5) from the dividend and append it to 13, then repeat: 135 / 30

Going ahead to step 5:
When dividing 135 by 30, we get 4 with a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 2404.0
Subtract 120 from 135 to get 15.
Append the next digit (5) from the dividend to 15 and continue with: 155 / 30

Let's proceed to step 6:
30 can be fit into 155 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 24045.0
If we take 150 away from 155, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 7:
If we divide 50 by 30, we get 1 and a remainder of 20.
Write down 1 as next digit of the result. 
Result so far: 24045.1
Deduct 30 from 50 and we're left 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.

On to step 8:
The number 30 fits into 200 6 times, leaving a remainder of 20.
Record the quotient 6 as the next digit in the result. 
Result so far: 24045.16
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.

Advancing to step 9:
If we divide 200 by 30, we get 6 and a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 24045.166
Subtract 180 from 200 to 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.

The final outcome is 24045.166, with a leftover of 0.002.