Let's divide 78390619 by 305
Let's see how many times 305 fits into 78390619.

Let's proceed to step 1:
The number 305 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 305

Let's proceed to step 2:
The number 305 fits into 78 0 times, leaving a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Fetch the next digit (3) from the dividend, attach it to 78 and continue: 783 / 305

Going ahead to step 3:
783 divided by 305 is 2 with a remainder of 173.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 610 away from 783, we end up with 173.
Bring next digit (9) of the dividend behind the 173 and repeat the process: 1739 / 305

Let's proceed to step 4:
305 goes into 1739 5 times with a remainder of 214.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Deduct 1525 from 1739 and we're left with 214.
Include the next digit (0) from the dividend after 214, then repeat: 2140 / 305

Step 5:
The number 305 fits into 2140 7 times, leaving a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 257.0
The remainder is 5 after subtracting 2135 from 2140.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 305

Step 6:
305 can be fit into 56 0 times, resulting in a remainder of 56.
The number 0 becomes the next digit in our result. 
Result so far: 2570.0
The remainder is 56 after subtracting 0 from 56.
Include the next digit (1) from the dividend after 56, then repeat: 561 / 305

Step 7:
305 goes into 561 1 times with a remainder of 256.
The number 1 becomes the next digit in our result. 
Result so far: 25701.0
Deduct 305 from 561 and we're left with 256.
Take the next digit (9) from the dividend and append it to 256, then repeat: 2569 / 305

On to step 8:
If we divide 2569 by 305, we get 8 and a remainder of 129.
The number 8 becomes the next digit in our result. 
Result so far: 257018.0
If we take 2440 away from 2569, we end up with 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Step 9:
1290 divided by 305 is 4 with a remainder of 70.
The number 4 becomes the next digit in our result. 
Result so far: 257018.4
Subtract 1220 from 1290 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 10:
305 goes into 700 2 times with a remainder of 90.
Record the quotient 2 as the next digit in the result. 
Result so far: 257018.42
If we subtract 610 from 700, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 11:
900 divided by 305 is 2 with a remainder of 290.
The next digit of our result is 2. 
Result so far: 257018.422
Deduct 610 from 900 and we're left with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

After the division, we end up with 257018.422 and a remainder of 0.029.