386434 ÷ 30 
The aim is to understand the frequency of 30 in 386434.

Advancing to step 1:
30 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 30

Moving on to step 2:
The number 30 fits into 38 1 times, leaving a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 30 away from 38, we end up with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 30

On to step 3:
When dividing 86 by 30, we get 2 with a remainder of 26.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 60 away from 86, we end up with 26.
Append the next digit (4) from the dividend to 26 and continue with: 264 / 30

Let's proceed to step 4:
When dividing 264 by 30, we get 8 with a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 128.0
Subtract 240 from 264 to get 24.
Bring next digit (3) of the dividend behind the 24 and repeat the process: 243 / 30

Let's proceed to step 5:
243 divided by 30 is 8 with a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 1288.0
If we take 240 away from 243, we end up with 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 30

Moving on to step 6:
When dividing 34 by 30, we get 1 with a remainder of 4.
Record the quotient 1 as the next digit in the result. 
Result so far: 12881.0
Subtracting 30 from 34 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 7:
40 divided by 30 is 1 with a remainder of 10.
The next digit of our result is 1. 
Result so far: 12881.1
Subtracting 30 from 40 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.

On to step 8:
When dividing 100 by 30, we get 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 12881.13
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.

Moving on to step 9:
If we divide 100 by 30, we get 3 and a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 12881.133
Deduct 90 from 100 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.

In conclusion, the division gives 12881.133 with a balance of 0.001.