3961809 ÷ 413 
Our goal is to divide 3961809 by 413.

Going ahead to step 1:
The number 413 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 413

On to step 2:
39 divided by 413 is 0 with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Take the next digit (6) from the dividend and append it to 39, then repeat: 396 / 413

Moving on to step 3:
When dividing 396 by 413, we get 0 with a remainder of 396.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 396 after subtracting 0 from 396.
Bring next digit (1) of the dividend behind the 396 and repeat the process: 3961 / 413

Advancing to step 4:
When dividing 3961 by 413, we get 9 with a remainder of 244.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
The remainder is 244 after subtracting 3717 from 3961.
Append the next digit (8) from the dividend to 244 and continue with: 2448 / 413

On to step 5:
When dividing 2448 by 413, we get 5 with a remainder of 383.
The next digit of our result is 5. 
Result so far: 95.0
If we take 2065 away from 2448, we end up with 383.
Include the next digit (0) from the dividend after 383, then repeat: 3830 / 413

Step 6:
When dividing 3830 by 413, we get 9 with a remainder of 113.
Write down 9 as next digit of the result. 
Result so far: 959.0
If we take 3717 away from 3830, we end up with 113.
Bring next digit (9) of the dividend behind the 113 and repeat the process: 1139 / 413

Step 7:
When dividing 1139 by 413, we get 2 with a remainder of 313.
The next digit of our result is 2. 
Result so far: 9592.0
The remainder is 313 after subtracting 826 from 1139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Moving on to step 8:
3130 divided by 413 is 7 with a remainder of 239.
Put 7 as the next digit of the answer. 
Result so far: 9592.7
If we subtract 2891 from 3130, we get 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Going ahead to step 9:
413 goes into 2390 5 times with a remainder of 325.
Use 5 as the next digit of our solution. 
Result so far: 9592.75
The remainder is 325 after subtracting 2065 from 2390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Let's proceed to step 10:
413 can be fit into 3250 7 times, resulting in a remainder of 359.
Put 7 as the next digit of the answer. 
Result so far: 9592.757
The remainder is 359 after subtracting 2891 from 3250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Let's proceed to step 11:
413 goes into 3590 8 times with a remainder of 286.
Use 8 as the next digit of our solution. 
Result so far: 9592.7578
If we take 3304 away from 3590, we end up with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Going ahead to step 12:
413 can be fit into 2860 6 times, resulting in a remainder of 382.
Record the quotient 6 as the next digit in the result. 
Result so far: 9592.75786
If we take 2478 away from 2860, we end up with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

On to step 13:
3820 divided by 413 is 9 with a remainder of 103.
Use 9 as the next digit of our solution. 
Result so far: 9592.757869
Subtract 3717 from 3820 to get 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Moving on to step 14:
413 can be fit into 1030 2 times, resulting in a remainder of 204.
Write down 2 as next digit of the result. 
Result so far: 9592.7578692
Subtracting 826 from 1030 leaves us with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Going ahead to step 15:
2040 divided by 413 is 4 with a remainder of 388.
The next digit of our result is 4. 
Result so far: 9592.75786924
Subtract 1652 from 2040 to get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

The final outcome is 9592.75786924, with a leftover of 3.88e-07.