754030 divided by 30 
The aim is to understand the frequency of 30 in 754030.

Let's proceed to step 1:
When dividing 7 by 30, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Append the next digit (5) from the dividend to 7 and continue with: 75 / 30

Let's proceed to step 2:
The number 30 fits into 75 2 times, leaving a remainder of 15.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 15 after subtracting 60 from 75.
Take the next digit (4) from the dividend and append it to 15, then repeat: 154 / 30

On to step 3:
30 can be fit into 154 5 times, resulting in a remainder of 4.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Deduct 150 from 154 and we're left with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 30

Going ahead to step 4:
If we divide 40 by 30, we get 1 and a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 251.0
Subtracting 30 from 40 leaves us with 10.
Grab the next digit (3) from the dividend, add it to 10, then carry on: 103 / 30

Moving on to step 5:
The number 30 fits into 103 3 times, leaving a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 2513.0
Subtracting 90 from 103 leaves us with 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 30

Advancing to step 6:
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: 25134.0
Subtract 120 from 130 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.

Step 7:
100 divided by 30 is 3 with a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 25134.3
If we take 90 away from 100, 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.

Step 8:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 25134.33
The remainder is 10 after subtracting 90 from 100.
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 outcome is 25134.33, with a leftover of 0.01.