We divide 199639 by 3
We want to divide 199639 by 3.

Advancing to step 1:
When dividing 1 by 3, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 3

Let's proceed to step 2:
19 divided by 3 is 6 with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 18 from 19 to get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 3

Moving on to step 3:
3 can be fit into 19 6 times, resulting in a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 66.0
Subtract 18 from 19 to get 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 3

Advancing to step 4:
If we divide 16 by 3, we get 5 and a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 665.0
If we subtract 15 from 16, we get 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 3

On to step 5:
3 can be fit into 13 4 times, resulting in a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 6654.0
If we subtract 12 from 13, we get 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 3

Advancing to step 6:
3 goes into 19 6 times with a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 66546.0
Subtracting 18 from 19 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.

Advancing to step 7:
3 can be fit into 10 3 times, resulting in a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 66546.3
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.

Moving on to step 8:
3 can be fit into 10 3 times, resulting in a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 66546.33
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.

The final outcome is 66546.33, with a leftover of 0.001.