309887 divided by 77 
We're looking to find how many times 77 goes into 309887.

Going ahead to step 1:
The number 77 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 77

On to step 2:
If we divide 30 by 77, we get 0 and a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Bring next digit (9) of the dividend behind the 30 and repeat the process: 309 / 77

Step 3:
309 divided by 77 is 4 with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 308 away from 309, we end up with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 77

Moving on to step 4:
If we divide 18 by 77, we get 0 and a remainder of 18.
The next digit of our result is 0. 
Result so far: 40.0
Deduct 0 from 18 and we're left with 18.
Bring next digit (8) of the dividend behind the 18 and repeat the process: 188 / 77

On to step 5:
77 can be fit into 188 2 times, resulting in a remainder of 34.
The next digit of our result is 2. 
Result so far: 402.0
If we take 154 away from 188, we end up with 34.
Take the next digit (7) from the dividend and append it to 34, then repeat: 347 / 77

Advancing to step 6:
347 divided by 77 is 4 with a remainder of 39.
The next digit of our result is 4. 
Result so far: 4024.0
Subtracting 308 from 347 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 7:
390 divided by 77 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 4024.5
If we take 385 away from 390, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 8:
If we divide 50 by 77, we get 0 and a remainder of 50.
The next digit of our result is 0. 
Result so far: 4024.5
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
The number 77 fits into 500 6 times, leaving a remainder of 38.
Write down 6 as next digit of the result. 
Result so far: 4024.506
Subtract 462 from 500 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 10:
77 can be fit into 380 4 times, resulting in a remainder of 72.
Record the quotient 4 as the next digit in the result. 
Result so far: 4024.5064
If we subtract 308 from 380, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 11:
77 goes into 720 9 times with a remainder of 27.
Record the quotient 9 as the next digit in the result. 
Result so far: 4024.50649
Deduct 693 from 720 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 12:
77 goes into 270 3 times with a remainder of 39.
Use 3 as the next digit of our solution. 
Result so far: 4024.506493
Subtract 231 from 270 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 13:
The number 77 fits into 390 5 times, leaving a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 4024.5064935
Subtract 385 from 390 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 14:
If we divide 50 by 77, we get 0 and a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 4024.5064935
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 4024.5064935 with a remainder of 5e-08.