56516378 ÷ 309 
We're looking to find how many times 309 goes into 56516378.

Going ahead to step 1:
If we divide 5 by 309, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 309

Going ahead to step 2:
309 goes into 56 0 times with a remainder of 56.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 56 to get 56.
Grab the next digit (5) from the dividend, add it to 56, then carry on: 565 / 309

On to step 3:
When dividing 565 by 309, we get 1 with a remainder of 256.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 309 from 565 and we're left with 256.
Take the next digit (1) from the dividend and append it to 256, then repeat: 2561 / 309

Let's proceed to step 4:
When dividing 2561 by 309, we get 8 with a remainder of 89.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Subtract 2472 from 2561 to get 89.
Grab the next digit (6) from the dividend, add it to 89, then carry on: 896 / 309

Moving on to step 5:
The number 309 fits into 896 2 times, leaving a remainder of 278.
Use 2 as the next digit of our solution. 
Result so far: 182.0
Deduct 618 from 896 and we're left with 278.
Append the next digit (3) from the dividend to 278 and continue with: 2783 / 309

Step 6:
If we divide 2783 by 309, we get 9 and a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 1829.0
Subtracting 2781 from 2783 leaves us with 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 309

Moving on to step 7:
27 divided by 309 is 0 with a remainder of 27.
Put 0 as the next digit of the answer. 
Result so far: 18290.0
If we take 0 away from 27, we end up with 27.
Append the next digit (8) from the dividend to 27 and continue with: 278 / 309

Step 8:
309 can be fit into 278 0 times, resulting in a remainder of 278.
Write down 0 as next digit of the result. 
Result so far: 182900.0
Subtracting 0 from 278 leaves us with 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

Step 9:
The number 309 fits into 2780 8 times, leaving a remainder of 308.
Record the quotient 8 as the next digit in the result. 
Result so far: 182900.8
Subtract 2472 from 2780 to get 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Step 10:
309 goes into 3080 9 times with a remainder of 299.
The next digit of our result is 9. 
Result so far: 182900.89
The remainder is 299 after subtracting 2781 from 3080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Step 11:
309 goes into 2990 9 times with a remainder of 209.
Record the quotient 9 as the next digit in the result. 
Result so far: 182900.899
Deduct 2781 from 2990 and we're left with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

The final result is 182900.899 with a remainder of 0.0209.