71881286 ÷ 30 
The aim is to understand the frequency of 30 in 71881286.

On to step 1:
The number 30 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 30

Moving on to step 2:
30 goes into 71 2 times with a remainder of 11.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 60 from 71 leaves us with 11.
Include the next digit (8) from the dividend after 11, then repeat: 118 / 30

Going ahead to step 3:
30 goes into 118 3 times with a remainder of 28.
Use 3 as the next digit of our solution. 
Result so far: 23.0
Subtracting 90 from 118 leaves us with 28.
Include the next digit (8) from the dividend after 28, then repeat: 288 / 30

Advancing to step 4:
If we divide 288 by 30, we get 9 and a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 239.0
The remainder is 18 after subtracting 270 from 288.
Take the next digit (1) from the dividend and append it to 18, then repeat: 181 / 30

On to step 5:
When dividing 181 by 30, we get 6 with a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 2396.0
The remainder is 1 after subtracting 180 from 181.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 30

Going ahead to step 6:
If we divide 12 by 30, we get 0 and a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 23960.0
The remainder is 12 after subtracting 0 from 12.
Take the next digit (8) from the dividend and append it to 12, then repeat: 128 / 30

Going ahead to step 7:
The number 30 fits into 128 4 times, leaving a remainder of 8.
The next digit of our result is 4. 
Result so far: 239604.0
If we subtract 120 from 128, we get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 30

Advancing to step 8:
86 divided by 30 is 2 with a remainder of 26.
Use 2 as the next digit of our solution. 
Result so far: 2396042.0
Deduct 60 from 86 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 9:
30 goes into 260 8 times with a remainder of 20.
Write down 8 as next digit of the result. 
Result so far: 2396042.8
The remainder is 20 after subtracting 240 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
The number 30 fits into 200 6 times, leaving a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 2396042.86
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 11:
200 divided by 30 is 6 with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 2396042.866
Deduct 180 from 200 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 2396042.866 with a balance of 0.002.