509404 ÷ 73 
We want to divide 509404 by 73.

Step 1:
The number 73 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 73

Step 2:
73 can be fit into 50 0 times, resulting in a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 50 to get 50.
Append the next digit (9) from the dividend to 50 and continue with: 509 / 73

Going ahead to step 3:
The number 73 fits into 509 6 times, leaving a remainder of 71.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 438 from 509 to get 71.
Fetch the next digit (4) from the dividend, attach it to 71 and continue: 714 / 73

Going ahead to step 4:
73 can be fit into 714 9 times, resulting in a remainder of 57.
Put 9 as the next digit of the answer. 
Result so far: 69.0
If we take 657 away from 714, we end up with 57.
Include the next digit (0) from the dividend after 57, then repeat: 570 / 73

On to step 5:
When dividing 570 by 73, we get 7 with a remainder of 59.
The number 7 becomes the next digit in our result. 
Result so far: 697.0
Subtract 511 from 570 to get 59.
Append the next digit (4) from the dividend to 59 and continue with: 594 / 73

On to step 6:
The number 73 fits into 594 8 times, leaving a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 6978.0
Subtracting 584 from 594 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
The number 73 fits into 100 1 times, leaving a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 6978.1
The remainder is 27 after subtracting 73 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 8:
If we divide 270 by 73, we get 3 and a remainder of 51.
The number 3 becomes the next digit in our result. 
Result so far: 6978.13
The remainder is 51 after subtracting 219 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 9:
When dividing 510 by 73, we get 6 with a remainder of 72.
The number 6 becomes the next digit in our result. 
Result so far: 6978.136
Subtracting 438 from 510 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 10:
73 goes into 720 9 times with a remainder of 63.
Put 9 as the next digit of the answer. 
Result so far: 6978.1369
Subtract 657 from 720 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 11:
When dividing 630 by 73, we get 8 with a remainder of 46.
The next digit of our result is 8. 
Result so far: 6978.13698
Subtracting 584 from 630 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 12:
73 can be fit into 460 6 times, resulting in a remainder of 22.
Put 6 as the next digit of the answer. 
Result so far: 6978.136986
Subtract 438 from 460 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 13:
If we divide 220 by 73, we get 3 and a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 6978.1369863
If we take 219 away from 220, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 14:
The number 73 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 6978.1369863
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 6978.1369863 with a remainder of 1e-08.