450830 ÷ 15 
We want to divide 450830 by 15.

Advancing to step 1:
If we divide 4 by 15, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 15

Step 2:
The number 15 fits into 45 3 times, leaving a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 45 from 45 leaves us with 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 15

Let's proceed to step 3:
The number 15 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 30.0
The remainder is 0 after subtracting 0 from 0.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 15

Step 4:
8 divided by 15 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 300.0
If we subtract 0 from 8, we get 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 15

Step 5:
When dividing 83 by 15, we get 5 with a remainder of 8.
Put 5 as the next digit of the answer. 
Result so far: 3005.0
Deduct 75 from 83 and we're left with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 15

Going ahead to step 6:
15 goes into 80 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 30055.0
If we take 75 away from 80, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
15 can be fit into 50 3 times, resulting in a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 30055.3
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
The number 15 fits into 50 3 times, leaving a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 30055.33
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

In conclusion, the division gives 30055.33 with a balance of 0.005.