31929631 ÷ 449 
Our goal is to divide 31929631 by 449.

Let's proceed to step 1:
When dividing 3 by 449, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 449

Going ahead to step 2:
449 can be fit into 31 0 times, resulting in a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Include the next digit (9) from the dividend after 31, then repeat: 319 / 449

Step 3:
449 goes into 319 0 times with a remainder of 319.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 319 after subtracting 0 from 319.
Include the next digit (2) from the dividend after 319, then repeat: 3192 / 449

Moving on to step 4:
3192 divided by 449 is 7 with a remainder of 49.
Write down 7 as next digit of the result. 
Result so far: 7.0
The remainder is 49 after subtracting 3143 from 3192.
Take the next digit (9) from the dividend and append it to 49, then repeat: 499 / 449

Advancing to step 5:
499 divided by 449 is 1 with a remainder of 50.
The number 1 becomes the next digit in our result. 
Result so far: 71.0
The remainder is 50 after subtracting 449 from 499.
Append the next digit (6) from the dividend to 50 and continue with: 506 / 449

Let's proceed to step 6:
449 can be fit into 506 1 times, resulting in a remainder of 57.
Record the quotient 1 as the next digit in the result. 
Result so far: 711.0
Subtract 449 from 506 to get 57.
Take the next digit (3) from the dividend and append it to 57, then repeat: 573 / 449

Step 7:
When dividing 573 by 449, we get 1 with a remainder of 124.
Write down 1 as next digit of the result. 
Result so far: 7111.0
Deduct 449 from 573 and we're left with 124.
Take the next digit (1) from the dividend and append it to 124, then repeat: 1241 / 449

Moving on to step 8:
The number 449 fits into 1241 2 times, leaving a remainder of 343.
Record the quotient 2 as the next digit in the result. 
Result so far: 71112.0
If we take 898 away from 1241, we end up with 343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

On to step 9:
3430 divided by 449 is 7 with a remainder of 287.
The next digit of our result is 7. 
Result so far: 71112.7
Subtracting 3143 from 3430 leaves us with 287.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2870, and continue the process.

Going ahead to step 10:
If we divide 2870 by 449, we get 6 and a remainder of 176.
The next digit of our result is 6. 
Result so far: 71112.76
Deduct 2694 from 2870 and we're left with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Step 11:
The number 449 fits into 1760 3 times, leaving a remainder of 413.
The next digit of our result is 3. 
Result so far: 71112.763
Deduct 1347 from 1760 and we're left with 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

Moving on to step 12:
4130 divided by 449 is 9 with a remainder of 89.
The next digit of our result is 9. 
Result so far: 71112.7639
The remainder is 89 after subtracting 4041 from 4130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Step 13:
The number 449 fits into 890 1 times, leaving a remainder of 441.
The number 1 becomes the next digit in our result. 
Result so far: 71112.76391
Subtracting 449 from 890 leaves us with 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Moving on to step 14:
449 goes into 4410 9 times with a remainder of 369.
Use 9 as the next digit of our solution. 
Result so far: 71112.763919
Deduct 4041 from 4410 and we're left with 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

Going ahead to step 15:
449 can be fit into 3690 8 times, resulting in a remainder of 98.
The number 8 becomes the next digit in our result. 
Result so far: 71112.7639198
If we take 3592 away from 3690, we end up with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Let's proceed to step 16:
449 can be fit into 980 2 times, resulting in a remainder of 82.
Use 2 as the next digit of our solution. 
Result so far: 71112.76391982
Subtract 898 from 980 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

The final result is 71112.76391982 with a remainder of 8.2e-08.