We divide 157990 by 30
The aim is to understand the frequency of 30 in 157990.

Moving on to step 1:
30 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 30

Let's proceed to step 2:
15 divided by 30 is 0 with a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 30

Advancing to step 3:
When dividing 157 by 30, we get 5 with a remainder of 7.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 150 from 157 to get 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 30

On to step 4:
The number 30 fits into 79 2 times, leaving a remainder of 19.
Write down 2 as next digit of the result. 
Result so far: 52.0
Subtract 60 from 79 to get 19.
Fetch the next digit (9) from the dividend, attach it to 19 and continue: 199 / 30

Let's proceed to step 5:
The number 30 fits into 199 6 times, leaving a remainder of 19.
Use 6 as the next digit of our solution. 
Result so far: 526.0
The remainder is 19 after subtracting 180 from 199.
Bring next digit (0) of the dividend behind the 19 and repeat the process: 190 / 30

Advancing to step 6:
30 goes into 190 6 times with a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 5266.0
If we subtract 180 from 190, we get 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 7:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 5266.3
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.

Going ahead to step 8:
If we divide 100 by 30, we get 3 and a remainder of 10.
The next digit of our result is 3. 
Result so far: 5266.33
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.

In conclusion, the division gives 5266.33 with a balance of 0.01.