We divide 31707399 by 30
The aim is to understand the frequency of 30 in 31707399.

Moving on to step 1:
If we divide 3 by 30, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 30

Step 2:
31 divided by 30 is 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 30 from 31 and we're left with 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 30

Going ahead to step 3:
If we divide 17 by 30, we get 0 and a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Deduct 0 from 17 and we're left with 17.
Take the next digit (0) from the dividend and append it to 17, then repeat: 170 / 30

On to step 4:
30 goes into 170 5 times with a remainder of 20.
The next digit of our result is 5. 
Result so far: 105.0
Subtracting 150 from 170 leaves us with 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 30

Step 5:
30 goes into 207 6 times with a remainder of 27.
Use 6 as the next digit of our solution. 
Result so far: 1056.0
If we subtract 180 from 207, we get 27.
Take the next digit (3) from the dividend and append it to 27, then repeat: 273 / 30

On to step 6:
The number 30 fits into 273 9 times, leaving a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 10569.0
If we subtract 270 from 273, we get 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 30

Let's proceed to step 7:
The number 30 fits into 39 1 times, leaving a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 105691.0
Deduct 30 from 39 and we're left with 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 30

Moving on to step 8:
99 divided by 30 is 3 with a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 1056913.0
If we subtract 90 from 99, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 9:
If we divide 90 by 30, we get 3 and a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 1056913.3
If we subtract 90 from 90, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
When dividing 0 by 30, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1056913.3
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.

Step 11:
If we divide 0 by 30, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1056913.3
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 1056913.3, and the remainder is 0.0.