We look at the division of 11310845 by 30 
The aim is to understand the frequency of 30 in 11310845.

Advancing to step 1:
If we divide 1 by 30, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 30

On to step 2:
The number 30 fits into 11 0 times, leaving a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 11 and we're left with 11.
Take the next digit (3) from the dividend and append it to 11, then repeat: 113 / 30

Going ahead to step 3:
113 divided by 30 is 3 with a remainder of 23.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 90 from 113 to get 23.
Grab the next digit (1) from the dividend, add it to 23, then carry on: 231 / 30

Let's proceed to step 4:
The number 30 fits into 231 7 times, leaving a remainder of 21.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
If we take 210 away from 231, we end up with 21.
Bring next digit (0) of the dividend behind the 21 and repeat the process: 210 / 30

Advancing to step 5:
210 divided by 30 is 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 377.0
Subtracting 210 from 210 leaves us with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 30

On to step 6:
When dividing 8 by 30, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 3770.0
Subtract 0 from 8 to get 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 30

On to step 7:
30 can be fit into 84 2 times, resulting in a remainder of 24.
The next digit of our result is 2. 
Result so far: 37702.0
If we take 60 away from 84, we end up with 24.
Take the next digit (5) from the dividend and append it to 24, then repeat: 245 / 30

Going ahead to step 8:
30 can be fit into 245 8 times, resulting in a remainder of 5.
Record the quotient 8 as the next digit in the result. 
Result so far: 377028.0
Subtracting 240 from 245 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 9:
If we divide 50 by 30, we get 1 and a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 377028.1
If we subtract 30 from 50, 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.

Moving on to step 10:
30 goes into 200 6 times with a remainder of 20.
The next digit of our result is 6. 
Result so far: 377028.16
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.

Going ahead to step 11:
The number 30 fits into 200 6 times, leaving a remainder of 20.
Record the quotient 6 as the next digit in the result. 
Result so far: 377028.166
If we take 180 away from 200, we end up 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.

The final outcome is 377028.166, with a leftover of 0.002.