We're dividing 30780311 by 510 
Let's see how many times 510 fits into 30780311.

Step 1:
The number 510 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 510

Step 2:
If we divide 30 by 510, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Append the next digit (7) from the dividend to 30 and continue with: 307 / 510

Let's proceed to step 3:
If we divide 307 by 510, we get 0 and a remainder of 307.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 307 leaves us with 307.
Append the next digit (8) from the dividend to 307 and continue with: 3078 / 510

Advancing to step 4:
510 can be fit into 3078 6 times, resulting in a remainder of 18.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we take 3060 away from 3078, we end up with 18.
Grab the next digit (0) from the dividend, add it to 18, then carry on: 180 / 510

Going ahead to step 5:
The number 510 fits into 180 0 times, leaving a remainder of 180.
Write down 0 as next digit of the result. 
Result so far: 60.0
The remainder is 180 after subtracting 0 from 180.
Include the next digit (3) from the dividend after 180, then repeat: 1803 / 510

Step 6:
1803 divided by 510 is 3 with a remainder of 273.
Use 3 as the next digit of our solution. 
Result so far: 603.0
Deduct 1530 from 1803 and we're left with 273.
Grab the next digit (1) from the dividend, add it to 273, then carry on: 2731 / 510

Let's proceed to step 7:
510 goes into 2731 5 times with a remainder of 181.
The next digit of our result is 5. 
Result so far: 6035.0
If we take 2550 away from 2731, we end up with 181.
Include the next digit (1) from the dividend after 181, then repeat: 1811 / 510

Step 8:
The number 510 fits into 1811 3 times, leaving a remainder of 281.
Use 3 as the next digit of our solution. 
Result so far: 60353.0
Subtracting 1530 from 1811 leaves us with 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Step 9:
When dividing 2810 by 510, we get 5 with a remainder of 260.
Record the quotient 5 as the next digit in the result. 
Result so far: 60353.5
If we subtract 2550 from 2810, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

On to step 10:
The number 510 fits into 2600 5 times, leaving a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 60353.55
Subtract 2550 from 2600 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

In conclusion, the division gives 60353.55 with a balance of 0.05.