163993 divided by 3 
Our goal is to divide 163993 by 3.

Advancing to step 1:
When dividing 1 by 3, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 3

On to step 2:
3 can be fit into 16 5 times, resulting in a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 15 from 16 leaves us with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 3

Going ahead to step 3:
When dividing 13 by 3, we get 4 with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
Subtracting 12 from 13 leaves us with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 3

Step 4:
If we divide 19 by 3, we get 6 and a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 546.0
If we subtract 18 from 19, we get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 3

Going ahead to step 5:
3 can be fit into 19 6 times, resulting in a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 5466.0
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

Advancing to step 6:
13 divided by 3 is 4 with a remainder of 1.
The next digit of our result is 4. 
Result so far: 54664.0
Subtract 12 from 13 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 7:
When dividing 10 by 3, we get 3 with a remainder of 1.
The next digit of our result is 3. 
Result so far: 54664.3
If we take 9 away from 10, we end up 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.

Going ahead to step 8:
10 divided by 3 is 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 54664.33
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.

The quotient of the division is 54664.33, and the remainder is 0.001.