We look at the division of 30390441 by 815 
We want to figure out the number of times 30390441 can be divided by 815.

On to step 1:
When dividing 3 by 815, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 815

Step 2:
30 divided by 815 is 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Fetch the next digit (3) from the dividend, attach it to 30 and continue: 303 / 815

Step 3:
When dividing 303 by 815, we get 0 with a remainder of 303.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 303 to get 303.
Include the next digit (9) from the dividend after 303, then repeat: 3039 / 815

Moving on to step 4:
When dividing 3039 by 815, we get 3 with a remainder of 594.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 2445 from 3039, we get 594.
Include the next digit (0) from the dividend after 594, then repeat: 5940 / 815

On to step 5:
When dividing 5940 by 815, we get 7 with a remainder of 235.
Write down 7 as next digit of the result. 
Result so far: 37.0
Deduct 5705 from 5940 and we're left with 235.
Bring next digit (4) of the dividend behind the 235 and repeat the process: 2354 / 815

Advancing to step 6:
The number 815 fits into 2354 2 times, leaving a remainder of 724.
Use 2 as the next digit of our solution. 
Result so far: 372.0
Deduct 1630 from 2354 and we're left with 724.
Include the next digit (4) from the dividend after 724, then repeat: 7244 / 815

Advancing to step 7:
When dividing 7244 by 815, we get 8 with a remainder of 724.
Record the quotient 8 as the next digit in the result. 
Result so far: 3728.0
Deduct 6520 from 7244 and we're left with 724.
Append the next digit (1) from the dividend to 724 and continue with: 7241 / 815

Advancing to step 8:
815 goes into 7241 8 times with a remainder of 721.
Write down 8 as next digit of the result. 
Result so far: 37288.0
If we take 6520 away from 7241, we end up with 721.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7210, and continue the process.

Moving on to step 9:
The number 815 fits into 7210 8 times, leaving a remainder of 690.
The number 8 becomes the next digit in our result. 
Result so far: 37288.8
Subtracting 6520 from 7210 leaves us with 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

Let's proceed to step 10:
815 can be fit into 6900 8 times, resulting in a remainder of 380.
Put 8 as the next digit of the answer. 
Result so far: 37288.88
Subtract 6520 from 6900 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

The final outcome is 37288.88, with a leftover of 0.38.