We're dividing 309320 by 71 
We want to divide 309320 by 71.

Going ahead to step 1:
When dividing 3 by 71, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 71

Step 2:
The number 71 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Fetch the next digit (9) from the dividend, attach it to 30 and continue: 309 / 71

On to step 3:
71 can be fit into 309 4 times, resulting in a remainder of 25.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 284 from 309 leaves us with 25.
Fetch the next digit (3) from the dividend, attach it to 25 and continue: 253 / 71

Going ahead to step 4:
The number 71 fits into 253 3 times, leaving a remainder of 40.
Use 3 as the next digit of our solution. 
Result so far: 43.0
Subtract 213 from 253 to get 40.
Grab the next digit (2) from the dividend, add it to 40, then carry on: 402 / 71

Step 5:
The number 71 fits into 402 5 times, leaving a remainder of 47.
Record the quotient 5 as the next digit in the result. 
Result so far: 435.0
Deduct 355 from 402 and we're left with 47.
Append the next digit (0) from the dividend to 47 and continue with: 470 / 71

On to step 6:
If we divide 470 by 71, we get 6 and a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 4356.0
Subtract 426 from 470 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 7:
440 divided by 71 is 6 with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 4356.6
If we subtract 426 from 440, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
When dividing 140 by 71, we get 1 with a remainder of 69.
Use 1 as the next digit of our solution. 
Result so far: 4356.61
The remainder is 69 after subtracting 71 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 9:
When dividing 690 by 71, we get 9 with a remainder of 51.
Record the quotient 9 as the next digit in the result. 
Result so far: 4356.619
If we take 639 away from 690, 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.

Step 10:
The number 71 fits into 510 7 times, leaving a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 4356.6197
If we take 497 away from 510, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 11:
71 goes into 130 1 times with a remainder of 59.
Put 1 as the next digit of the answer. 
Result so far: 4356.61971
The remainder is 59 after subtracting 71 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 12:
The number 71 fits into 590 8 times, leaving a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 4356.619718
Deduct 568 from 590 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 13:
If we divide 220 by 71, we get 3 and a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 4356.6197183
Subtract 213 from 220 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 14:
If we divide 70 by 71, we get 0 and a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 4356.6197183
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

In conclusion, the division gives 4356.6197183 with a balance of 7e-08.