931117 divided by 30 
The aim is to understand the frequency of 30 in 931117.

Going ahead to step 1:
If we divide 9 by 30, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (3) of the dividend behind the 9 and repeat the process: 93 / 30

Advancing to step 2:
93 divided by 30 is 3 with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 90 from 93 to get 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 30

Let's proceed to step 3:
30 can be fit into 31 1 times, resulting in a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
Subtract 30 from 31 to get 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 30

Let's proceed to step 4:
The number 30 fits into 11 0 times, leaving a remainder of 11.
Put 0 as the next digit of the answer. 
Result so far: 310.0
Subtract 0 from 11 to get 11.
Append the next digit (1) from the dividend to 11 and continue with: 111 / 30

Advancing to step 5:
The number 30 fits into 111 3 times, leaving a remainder of 21.
Put 3 as the next digit of the answer. 
Result so far: 3103.0
If we subtract 90 from 111, we get 21.
Take the next digit (7) from the dividend and append it to 21, then repeat: 217 / 30

Let's proceed to step 6:
30 goes into 217 7 times with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 31037.0
If we take 210 away from 217, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
30 goes into 70 2 times with a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 31037.2
Deduct 60 from 70 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.

On to step 8:
When dividing 100 by 30, we get 3 with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 31037.23
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.

Advancing to step 9:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 31037.233
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.

After the division, we end up with 31037.233 and a remainder of 0.001.