581713 ÷ 30 
The aim is to understand the frequency of 30 in 581713.

Going ahead to step 1:
30 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 30

Step 2:
When dividing 58 by 30, we get 1 with a remainder of 28.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 30 from 58 leaves us with 28.
Append the next digit (1) from the dividend to 28 and continue with: 281 / 30

Moving on to step 3:
When dividing 281 by 30, we get 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 19.0
The remainder is 11 after subtracting 270 from 281.
Bring next digit (7) of the dividend behind the 11 and repeat the process: 117 / 30

Going ahead to step 4:
117 divided by 30 is 3 with a remainder of 27.
Write down 3 as next digit of the result. 
Result so far: 193.0
The remainder is 27 after subtracting 90 from 117.
Include the next digit (1) from the dividend after 27, then repeat: 271 / 30

Let's proceed to step 5:
When dividing 271 by 30, we get 9 with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 1939.0
If we take 270 away from 271, we end up with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 30

On to step 6:
The number 30 fits into 13 0 times, leaving a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 19390.0
Subtract 0 from 13 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
When dividing 130 by 30, we get 4 with a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 19390.4
If we take 120 away from 130, we end up 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.

Going ahead to step 8:
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: 19390.43
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.

Going ahead to step 9:
The number 30 fits into 100 3 times, leaving a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 19390.433
Subtracting 90 from 100 leaves us 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 19390.433 with a remainder of 0.001.