15966965 ÷ 323 
Let's see how many times 323 fits into 15966965.

Advancing to step 1:
1 divided by 323 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 323

Going ahead to step 2:
15 divided by 323 is 0 with a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Bring next digit (9) of the dividend behind the 15 and repeat the process: 159 / 323

Moving on to step 3:
323 goes into 159 0 times with a remainder of 159.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 159 to get 159.
Append the next digit (6) from the dividend to 159 and continue with: 1596 / 323

Let's proceed to step 4:
If we divide 1596 by 323, we get 4 and a remainder of 304.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 1292 from 1596 leaves us with 304.
Take the next digit (6) from the dividend and append it to 304, then repeat: 3046 / 323

Step 5:
If we divide 3046 by 323, we get 9 and a remainder of 139.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
If we subtract 2907 from 3046, we get 139.
Include the next digit (9) from the dividend after 139, then repeat: 1399 / 323

Moving on to step 6:
If we divide 1399 by 323, we get 4 and a remainder of 107.
Write down 4 as next digit of the result. 
Result so far: 494.0
Subtract 1292 from 1399 to get 107.
Fetch the next digit (6) from the dividend, attach it to 107 and continue: 1076 / 323

On to step 7:
323 goes into 1076 3 times with a remainder of 107.
Use 3 as the next digit of our solution. 
Result so far: 4943.0
The remainder is 107 after subtracting 969 from 1076.
Grab the next digit (5) from the dividend, add it to 107, then carry on: 1075 / 323

On to step 8:
323 can be fit into 1075 3 times, resulting in a remainder of 106.
Write down 3 as next digit of the result. 
Result so far: 49433.0
If we take 969 away from 1075, we end up with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Advancing to step 9:
When dividing 1060 by 323, we get 3 with a remainder of 91.
Write down 3 as next digit of the result. 
Result so far: 49433.3
Subtracting 969 from 1060 leaves us with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Going ahead to step 10:
323 goes into 910 2 times with a remainder of 264.
The number 2 becomes the next digit in our result. 
Result so far: 49433.32
Deduct 646 from 910 and we're left with 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Let's proceed to step 11:
2640 divided by 323 is 8 with a remainder of 56.
Put 8 as the next digit of the answer. 
Result so far: 49433.328
Deduct 2584 from 2640 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 12:
323 goes into 560 1 times with a remainder of 237.
Record the quotient 1 as the next digit in the result. 
Result so far: 49433.3281
Deduct 323 from 560 and we're left with 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

Advancing to step 13:
When dividing 2370 by 323, we get 7 with a remainder of 109.
The next digit of our result is 7. 
Result so far: 49433.32817
The remainder is 109 after subtracting 2261 from 2370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Moving on to step 14:
323 goes into 1090 3 times with a remainder of 121.
The number 3 becomes the next digit in our result. 
Result so far: 49433.328173
Subtracting 969 from 1090 leaves us with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Going ahead to step 15:
When dividing 1210 by 323, we get 3 with a remainder of 241.
Use 3 as the next digit of our solution. 
Result so far: 49433.3281733
The remainder is 241 after subtracting 969 from 1210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

The final outcome is 49433.3281733, with a leftover of 2.41e-06.