We look at the division of 780211 by 30 
The aim is to understand the frequency of 30 in 780211.

Let's proceed to step 1:
When dividing 7 by 30, we get 0 with 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.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 30

Going ahead to step 2:
30 goes into 78 2 times with a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 18 after subtracting 60 from 78.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 30

Going ahead to step 3:
30 goes into 180 6 times with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 26.0
If we subtract 180 from 180, we get 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 30

Advancing to step 4:
2 divided by 30 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 260.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 30

On to step 5:
The number 30 fits into 21 0 times, leaving a remainder of 21.
The next digit of our result is 0. 
Result so far: 2600.0
Subtract 0 from 21 to get 21.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 30

Going ahead to step 6:
211 divided by 30 is 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 26007.0
The remainder is 1 after subtracting 210 from 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
If we divide 10 by 30, we get 0 and a remainder of 10.
The next digit of our result is 0. 
Result so far: 26007.0
The remainder is 10 after subtracting 0 from 10.
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:
The number 30 fits into 100 3 times, leaving a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 26007.03
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.

Moving on to step 9:
If we divide 100 by 30, we get 3 and a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 26007.033
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.

Our division results in 26007.033 with a remaining 0.001.