We look at the division of 491986 by 3 
We're looking to find how many times 3 goes into 491986.

Moving on to step 1:
3 goes into 4 1 times with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 1 after subtracting 3 from 4.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 3

Moving on to step 2:
3 can be fit into 19 6 times, resulting in a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Deduct 18 from 19 and we're left with 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 3

Going ahead to step 3:
3 goes into 11 3 times with a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 163.0
If we take 9 away from 11, we end up with 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 3

Advancing to step 4:
The number 3 fits into 29 9 times, leaving a remainder of 2.
The next digit of our result is 9. 
Result so far: 1639.0
The remainder is 2 after subtracting 27 from 29.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 3

Moving on to step 5:
3 can be fit into 28 9 times, resulting in a remainder of 1.
The next digit of our result is 9. 
Result so far: 16399.0
Subtracting 27 from 28 leaves us with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 3

Going ahead to step 6:
3 goes into 16 5 times with a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 163995.0
The remainder is 1 after subtracting 15 from 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
The number 3 fits into 10 3 times, leaving a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 163995.3
Deduct 9 from 10 and we're left 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.

Advancing to step 8:
3 goes into 10 3 times with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 163995.33
Subtracting 9 from 10 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.

In conclusion, the division gives 163995.33 with a balance of 0.001.