91374 divided by 30 
The aim is to understand the frequency of 30 in 91374.

Step 1:
9 divided by 30 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 30

Let's proceed to step 2:
When dividing 91 by 30, we get 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 1 after subtracting 90 from 91.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 30

Step 3:
30 goes into 13 0 times with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
If we take 0 away from 13, we end up with 13.
Fetch the next digit (7) from the dividend, attach it to 13 and continue: 137 / 30

Advancing to step 4:
If we divide 137 by 30, we get 4 and a remainder of 17.
Put 4 as the next digit of the answer. 
Result so far: 304.0
The remainder is 17 after subtracting 120 from 137.
Append the next digit (4) from the dividend to 17 and continue with: 174 / 30

Step 5:
When dividing 174 by 30, we get 5 with a remainder of 24.
Record the quotient 5 as the next digit in the result. 
Result so far: 3045.0
Subtracting 150 from 174 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 6:
30 can be fit into 240 8 times, resulting in a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 3045.8
If we take 240 away from 240, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
0 divided by 30 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 3045.8
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 30, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3045.8
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 3045.8 with a balance of 0.0.