Let's divide 391904 by 73
We're looking to find how many times 73 goes into 391904.

On to step 1:
If we divide 3 by 73, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 73

On to step 2:
73 goes into 39 0 times with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Fetch the next digit (1) from the dividend, attach it to 39 and continue: 391 / 73

Going ahead to step 3:
73 goes into 391 5 times with a remainder of 26.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 26 after subtracting 365 from 391.
Bring next digit (9) of the dividend behind the 26 and repeat the process: 269 / 73

Moving on to step 4:
73 can be fit into 269 3 times, resulting in a remainder of 50.
Use 3 as the next digit of our solution. 
Result so far: 53.0
Subtract 219 from 269 to get 50.
Take the next digit (0) from the dividend and append it to 50, then repeat: 500 / 73

Advancing to step 5:
The number 73 fits into 500 6 times, leaving a remainder of 62.
The next digit of our result is 6. 
Result so far: 536.0
If we subtract 438 from 500, we get 62.
Take the next digit (4) from the dividend and append it to 62, then repeat: 624 / 73

Step 6:
If we divide 624 by 73, we get 8 and a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 5368.0
Subtract 584 from 624 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 7:
If we divide 400 by 73, we get 5 and a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 5368.5
Deduct 365 from 400 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 8:
73 goes into 350 4 times with a remainder of 58.
The number 4 becomes the next digit in our result. 
Result so far: 5368.54
The remainder is 58 after subtracting 292 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 9:
If we divide 580 by 73, we get 7 and a remainder of 69.
The next digit of our result is 7. 
Result so far: 5368.547
If we take 511 away from 580, we end up with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Going ahead to step 10:
690 divided by 73 is 9 with a remainder of 33.
Use 9 as the next digit of our solution. 
Result so far: 5368.5479
Deduct 657 from 690 and we're left with 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 11:
The number 73 fits into 330 4 times, leaving a remainder of 38.
The next digit of our result is 4. 
Result so far: 5368.54794
If we take 292 away from 330, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 12:
73 can be fit into 380 5 times, resulting in a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 5368.547945
If we take 365 away from 380, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 13:
If we divide 150 by 73, we get 2 and a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 5368.5479452
If we take 146 away from 150, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 14:
If we divide 40 by 73, we get 0 and a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 5368.5479452
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 5368.5479452, with a leftover of 4e-08.