We look at the division of 493607 by 3 
We're looking to find how many times 3 goes into 493607.

Going ahead to step 1:
3 goes into 4 1 times with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 3 from 4 leaves us with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 3

Moving on to step 2:
If we divide 19 by 3, we get 6 and a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Deduct 18 from 19 and we're left with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 3

Going ahead to step 3:
The number 3 fits into 13 4 times, leaving a remainder of 1.
Put 4 as the next digit of the answer. 
Result so far: 164.0
Deduct 12 from 13 and we're left with 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 3

Advancing to step 4:
3 goes into 16 5 times with a remainder of 1.
The next digit of our result is 5. 
Result so far: 1645.0
Deduct 15 from 16 and we're left with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 3

Going ahead to step 5:
When dividing 10 by 3, we get 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 16453.0
If we take 9 away from 10, we end up with 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 3

On to step 6:
3 goes into 17 5 times with a remainder of 2.
The next digit of our result is 5. 
Result so far: 164535.0
Deduct 15 from 17 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 7:
When dividing 20 by 3, we get 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 164535.6
If we take 18 away from 20, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
3 goes into 20 6 times with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 164535.66
Deduct 18 from 20 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The quotient of the division is 164535.66, and the remainder is 0.002.