We divide 300621 by 71
Let's see how many times 71 fits into 300621.

On to step 1:
If we divide 3 by 71, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 71

Step 2:
30 divided by 71 is 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Bring next digit (0) of the dividend behind the 30 and repeat the process: 300 / 71

Advancing to step 3:
300 divided by 71 is 4 with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 284 away from 300, we end up with 16.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 71

Going ahead to step 4:
71 goes into 166 2 times with a remainder of 24.
The next digit of our result is 2. 
Result so far: 42.0
If we take 142 away from 166, we end up with 24.
Take the next digit (2) from the dividend and append it to 24, then repeat: 242 / 71

Let's proceed to step 5:
242 divided by 71 is 3 with a remainder of 29.
Record the quotient 3 as the next digit in the result. 
Result so far: 423.0
Deduct 213 from 242 and we're left with 29.
Bring next digit (1) of the dividend behind the 29 and repeat the process: 291 / 71

Let's proceed to step 6:
291 divided by 71 is 4 with a remainder of 7.
The next digit of our result is 4. 
Result so far: 4234.0
Subtract 284 from 291 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.

Going ahead to step 7:
When dividing 70 by 71, we get 0 with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 4234.0
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.

On to step 8:
71 can be fit into 700 9 times, resulting in a remainder of 61.
Use 9 as the next digit of our solution. 
Result so far: 4234.09
Deduct 639 from 700 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 9:
If we divide 610 by 71, we get 8 and a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 4234.098
If we subtract 568 from 610, 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.

Moving on to step 10:
If we divide 420 by 71, we get 5 and a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 4234.0985
If we subtract 355 from 420, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 11:
650 divided by 71 is 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 4234.09859
Subtracting 639 from 650 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 12:
110 divided by 71 is 1 with a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 4234.098591
If we subtract 71 from 110, we 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.

Going ahead to step 13:
390 divided by 71 is 5 with a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 4234.0985915
Subtract 355 from 390 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 14:
When dividing 350 by 71, we get 4 with a remainder of 66.
Write down 4 as next digit of the result. 
Result so far: 4234.09859154
If we subtract 284 from 350, 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.

The final outcome is 4234.09859154, with a leftover of 6.6e-08.