309999 divided by 10 
We want to figure out the number of times 309999 can be divided by 10.

Let's proceed to step 1:
3 divided by 10 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 10

Moving on to step 2:
If we divide 30 by 10, we get 3 and a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 30 from 30 and we're left with 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 10

On to step 3:
When dividing 9 by 10, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 30.0
If we subtract 0 from 9, we get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 10

Moving on to step 4:
99 divided by 10 is 9 with a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 309.0
If we take 90 away from 99, we end up with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 10

Going ahead to step 5:
10 can be fit into 99 9 times, resulting in a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 3099.0
The remainder is 9 after subtracting 90 from 99.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 10

Advancing to step 6:
99 divided by 10 is 9 with a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 30999.0
The remainder is 9 after subtracting 90 from 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 7:
90 divided by 10 is 9 with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 30999.9
Deduct 90 from 90 and we're left 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.

Advancing to step 8:
10 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 30999.9
If we subtract 0 from 0, 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.

Moving on to step 9:
If we divide 0 by 10, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 30999.9
Subtract 0 from 0 to 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.

The final result is 30999.9 with a remainder of 0.0.