Let's divide 309087 by 83
We're looking to find how many times 83 goes into 309087.

Step 1:
3 divided by 83 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 83

Step 2:
83 can be fit into 30 0 times, resulting in a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Append the next digit (9) from the dividend to 30 and continue with: 309 / 83

Advancing to step 3:
The number 83 fits into 309 3 times, leaving a remainder of 60.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 249 away from 309, we end up with 60.
Take the next digit (0) from the dividend and append it to 60, then repeat: 600 / 83

Moving on to step 4:
600 divided by 83 is 7 with a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 37.0
If we subtract 581 from 600, we get 19.
Take the next digit (8) from the dividend and append it to 19, then repeat: 198 / 83

Going ahead to step 5:
83 can be fit into 198 2 times, resulting in a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 372.0
Subtracting 166 from 198 leaves us with 32.
Bring next digit (7) of the dividend behind the 32 and repeat the process: 327 / 83

Going ahead to step 6:
327 divided by 83 is 3 with a remainder of 78.
Put 3 as the next digit of the answer. 
Result so far: 3723.0
Deduct 249 from 327 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 7:
If we divide 780 by 83, we get 9 and a remainder of 33.
The next digit of our result is 9. 
Result so far: 3723.9
If we subtract 747 from 780, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 8:
If we divide 330 by 83, we get 3 and a remainder of 81.
Use 3 as the next digit of our solution. 
Result so far: 3723.93
Deduct 249 from 330 and we're left with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Going ahead to step 9:
83 can be fit into 810 9 times, resulting in a remainder of 63.
Put 9 as the next digit of the answer. 
Result so far: 3723.939
Deduct 747 from 810 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Let's proceed to step 10:
83 goes into 630 7 times with a remainder of 49.
Put 7 as the next digit of the answer. 
Result so far: 3723.9397
If we subtract 581 from 630, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 11:
490 divided by 83 is 5 with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 3723.93975
Subtract 415 from 490 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 12:
If we divide 750 by 83, we get 9 and a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 3723.939759
Subtracting 747 from 750 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 13:
The number 83 fits into 30 0 times, leaving a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 3723.939759
Deduct 0 from 30 and we're left 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.

Step 14:
300 divided by 83 is 3 with a remainder of 51.
The next digit of our result is 3. 
Result so far: 3723.93975903
If we take 249 away from 300, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

The final result is 3723.93975903 with a remainder of 5.1e-08.