519598 divided by 30 
The aim is to understand the frequency of 30 in 519598.

On to step 1:
The number 30 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 30

Step 2:
If we divide 51 by 30, we get 1 and a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 30 from 51 to get 21.
Take the next digit (9) from the dividend and append it to 21, then repeat: 219 / 30

Going ahead to step 3:
When dividing 219 by 30, we get 7 with a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 17.0
Deduct 210 from 219 and we're left with 9.
Grab the next digit (5) from the dividend, add it to 9, then carry on: 95 / 30

Advancing to step 4:
95 divided by 30 is 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 173.0
The remainder is 5 after subtracting 90 from 95.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 30

On to step 5:
30 goes into 59 1 times with a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 1731.0
Subtracting 30 from 59 leaves us with 29.
Grab the next digit (8) from the dividend, add it to 29, then carry on: 298 / 30

Let's proceed to step 6:
298 divided by 30 is 9 with a remainder of 28.
The number 9 becomes the next digit in our result. 
Result so far: 17319.0
If we take 270 away from 298, we end up 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.

Going ahead to step 7:
When dividing 280 by 30, we get 9 with a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 17319.9
The remainder is 10 after subtracting 270 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
30 can be fit into 100 3 times, resulting in a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 17319.93
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:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 17319.933
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.

The final result is 17319.933 with a remainder of 0.001.