We're dividing 307639 by 30 
We want to divide 307639 by 30.

Going ahead to step 1:
The number 30 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 30

Let's proceed to step 2:
The number 30 fits into 30 1 times, leaving a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 30 from 30 to get 0.
Fetch the next digit (7) from the dividend, attach it to 0 and continue: 7 / 30

Step 3:
When dividing 7 by 30, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 30

Advancing to step 4:
30 can be fit into 76 2 times, resulting in a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 102.0
The remainder is 16 after subtracting 60 from 76.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 30

Step 5:
When dividing 163 by 30, we get 5 with a remainder of 13.
The number 5 becomes the next digit in our result. 
Result so far: 1025.0
If we take 150 away from 163, we end up with 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 30

On to step 6:
30 can be fit into 139 4 times, resulting in a remainder of 19.
Record the quotient 4 as the next digit in the result. 
Result so far: 10254.0
If we take 120 away from 139, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 7:
190 divided by 30 is 6 with a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 10254.6
If we take 180 away from 190, we end up 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.
The number 3 becomes the next digit in our result. 
Result so far: 10254.63
If we take 90 away from 100, we end up 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.

Going ahead to step 9:
30 goes into 100 3 times with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 10254.633
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 10254.633 with a balance of 0.001.