309809 divided by 73 
Our goal is to divide 309809 by 73.

On to step 1:
The number 73 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
If we subtract 0 from 3, we get 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 73

On to step 2:
If we divide 30 by 73, we get 0 and a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Take the next digit (9) from the dividend and append it to 30, then repeat: 309 / 73

Going ahead to step 3:
309 divided by 73 is 4 with a remainder of 17.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 292 away from 309, we end up with 17.
Append the next digit (8) from the dividend to 17 and continue with: 178 / 73

Step 4:
178 divided by 73 is 2 with a remainder of 32.
The next digit of our result is 2. 
Result so far: 42.0
If we take 146 away from 178, we end up with 32.
Fetch the next digit (0) from the dividend, attach it to 32 and continue: 320 / 73

Moving on to step 5:
If we divide 320 by 73, we get 4 and a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 424.0
Subtracting 292 from 320 leaves us with 28.
Take the next digit (9) from the dividend and append it to 28, then repeat: 289 / 73

Going ahead to step 6:
The number 73 fits into 289 3 times, leaving a remainder of 70.
Record the quotient 3 as the next digit in the result. 
Result so far: 4243.0
Subtract 219 from 289 to get 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 7:
73 goes into 700 9 times with a remainder of 43.
Put 9 as the next digit of the answer. 
Result so far: 4243.9
The remainder is 43 after subtracting 657 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 8:
If we divide 430 by 73, we get 5 and a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 4243.95
Subtracting 365 from 430 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 9:
If we divide 650 by 73, we get 8 and a remainder of 66.
The next digit of our result is 8. 
Result so far: 4243.958
Deduct 584 from 650 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 10:
The number 73 fits into 660 9 times, leaving a remainder of 3.
The next digit of our result is 9. 
Result so far: 4243.9589
Subtracting 657 from 660 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.

On to step 11:
73 goes into 30 0 times with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 4243.9589
Subtract 0 from 30 to get 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 12:
The number 73 fits into 300 4 times, leaving a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 4243.958904
If we subtract 292 from 300, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 13:
When dividing 80 by 73, we get 1 with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 4243.9589041
Subtracting 73 from 80 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 14:
73 goes into 70 0 times with a remainder of 70.
The next digit of our result is 0. 
Result so far: 4243.9589041
Subtracting 0 from 70 leaves us 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.

After the division, we end up with 4243.9589041 and a remainder of 7e-08.