720598 ÷ 30 
The aim is to understand the frequency of 30 in 720598.

Going ahead to step 1:
30 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 30

Going ahead to step 2:
72 divided by 30 is 2 with a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 60 from 72 leaves us with 12.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 30

Advancing to step 3:
The number 30 fits into 120 4 times, leaving a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 24.0
If we subtract 120 from 120, we get 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 30

On to step 4:
If we divide 5 by 30, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 240.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 30

Step 5:
30 can be fit into 59 1 times, resulting in a remainder of 29.
The next digit of our result is 1. 
Result so far: 2401.0
Deduct 30 from 59 and we're left with 29.
Take the next digit (8) from the dividend and append it to 29, then repeat: 298 / 30

Going ahead to step 6:
The number 30 fits into 298 9 times, leaving a remainder of 28.
Write down 9 as next digit of the result. 
Result so far: 24019.0
Deduct 270 from 298 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 7:
The number 30 fits into 280 9 times, leaving a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 24019.9
If we subtract 270 from 280, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
When dividing 100 by 30, we get 3 with a remainder of 10.
The next digit of our result is 3. 
Result so far: 24019.93
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
If we divide 100 by 30, we get 3 and a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 24019.933
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 24019.933 with a remaining 0.001.