391264 ÷ 16 
Our goal is to divide 391264 by 16.

On to step 1:
16 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 16

Let's proceed to step 2:
16 goes into 39 2 times with a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 32 from 39, we get 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 16

Going ahead to step 3:
If we divide 71 by 16, we get 4 and a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Subtracting 64 from 71 leaves us with 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 16

On to step 4:
The number 16 fits into 72 4 times, leaving a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 244.0
The remainder is 8 after subtracting 64 from 72.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 16

Advancing to step 5:
The number 16 fits into 86 5 times, leaving a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 2445.0
If we subtract 80 from 86, we get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 16

Step 6:
64 divided by 16 is 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 24454.0
If we subtract 64 from 64, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
16 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 24454.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
0 divided by 16 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 24454.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 24454.0, with a leftover of 0.0.