We divide 491638 by 31
We want to divide 491638 by 31.

Advancing to step 1:
If we divide 4 by 31, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 31

On to step 2:
31 can be fit into 49 1 times, resulting in a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 31 away from 49, we end up with 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 31

On to step 3:
The number 31 fits into 181 5 times, leaving a remainder of 26.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we take 155 away from 181, we end up with 26.
Take the next digit (6) from the dividend and append it to 26, then repeat: 266 / 31

Step 4:
If we divide 266 by 31, we get 8 and a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 158.0
If we take 248 away from 266, we end up with 18.
Take the next digit (3) from the dividend and append it to 18, then repeat: 183 / 31

Going ahead to step 5:
If we divide 183 by 31, we get 5 and a remainder of 28.
The next digit of our result is 5. 
Result so far: 1585.0
The remainder is 28 after subtracting 155 from 183.
Append the next digit (8) from the dividend to 28 and continue with: 288 / 31

Going ahead to step 6:
288 divided by 31 is 9 with a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 15859.0
The remainder is 9 after subtracting 279 from 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 7:
90 divided by 31 is 2 with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 15859.2
The remainder is 28 after subtracting 62 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 8:
31 can be fit into 280 9 times, resulting in a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 15859.29
Subtracting 279 from 280 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 9:
The number 31 fits into 10 0 times, leaving a remainder of 10.
The next digit of our result is 0. 
Result so far: 15859.29
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 10:
100 divided by 31 is 3 with a remainder of 7.
The next digit of our result is 3. 
Result so far: 15859.2903
Deduct 93 from 100 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 11:
If we divide 70 by 31, we get 2 and a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 15859.29032
If we take 62 away from 70, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 12:
The number 31 fits into 80 2 times, leaving a remainder of 18.
The next digit of our result is 2. 
Result so far: 15859.290322
Deduct 62 from 80 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

In conclusion, the division gives 15859.290322 with a balance of 1.8e-06.