39277863 divided by 78 
Our goal is to divide 39277863 by 78.

Step 1:
The number 78 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 78

On to step 2:
If we divide 39 by 78, we get 0 and a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Append the next digit (2) from the dividend to 39 and continue with: 392 / 78

Going ahead to step 3:
78 can be fit into 392 5 times, resulting in a remainder of 2.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 2 after subtracting 390 from 392.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 78

Step 4:
78 goes into 27 0 times with a remainder of 27.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
If we subtract 0 from 27, we get 27.
Include the next digit (7) from the dividend after 27, then repeat: 277 / 78

Advancing to step 5:
The number 78 fits into 277 3 times, leaving a remainder of 43.
Put 3 as the next digit of the answer. 
Result so far: 503.0
Subtract 234 from 277 to get 43.
Append the next digit (8) from the dividend to 43 and continue with: 438 / 78

Advancing to step 6:
If we divide 438 by 78, we get 5 and a remainder of 48.
The next digit of our result is 5. 
Result so far: 5035.0
If we take 390 away from 438, we end up with 48.
Take the next digit (6) from the dividend and append it to 48, then repeat: 486 / 78

Going ahead to step 7:
78 goes into 486 6 times with a remainder of 18.
Put 6 as the next digit of the answer. 
Result so far: 50356.0
If we take 468 away from 486, we end up with 18.
Grab the next digit (3) from the dividend, add it to 18, then carry on: 183 / 78

Moving on to step 8:
When dividing 183 by 78, we get 2 with a remainder of 27.
Record the quotient 2 as the next digit in the result. 
Result so far: 503562.0
Deduct 156 from 183 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 9:
270 divided by 78 is 3 with a remainder of 36.
The number 3 becomes the next digit in our result. 
Result so far: 503562.3
Subtract 234 from 270 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 10:
360 divided by 78 is 4 with a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 503562.34
The remainder is 48 after subtracting 312 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 11:
If we divide 480 by 78, we get 6 and a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 503562.346
If we subtract 468 from 480, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 12:
The number 78 fits into 120 1 times, leaving a remainder of 42.
The number 1 becomes the next digit in our result. 
Result so far: 503562.3461
If we subtract 78 from 120, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 13:
If we divide 420 by 78, we get 5 and a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 503562.34615
If we take 390 away from 420, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 14:
When dividing 300 by 78, we get 3 with a remainder of 66.
Use 3 as the next digit of our solution. 
Result so far: 503562.346153
If we subtract 234 from 300, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 15:
When dividing 660 by 78, we get 8 with a remainder of 36.
Use 8 as the next digit of our solution. 
Result so far: 503562.3461538
If we take 624 away from 660, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 16:
78 can be fit into 360 4 times, resulting in a remainder of 48.
Record the quotient 4 as the next digit in the result. 
Result so far: 503562.34615384
If we take 312 away from 360, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final result is 503562.34615384 with a remainder of 4.8e-08.