Let's divide 743899 by 3
Let's see how many times 3 fits into 743899.

Step 1:
3 can be fit into 7 2 times, resulting in a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 6 away from 7, we end up with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 3

On to step 2:
3 can be fit into 14 4 times, resulting in a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Deduct 12 from 14 and we're left with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 3

Advancing to step 3:
If we divide 23 by 3, we get 7 and a remainder of 2.
The next digit of our result is 7. 
Result so far: 247.0
If we subtract 21 from 23, we get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 3

Advancing to step 4:
When dividing 28 by 3, we get 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 2479.0
Deduct 27 from 28 and we're left with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 3

Let's proceed to step 5:
The number 3 fits into 19 6 times, leaving a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 24796.0
Subtracting 18 from 19 leaves us with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 3

Let's proceed to step 6:
The number 3 fits into 19 6 times, leaving a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 247966.0
Subtract 18 from 19 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:
The number 3 fits into 10 3 times, leaving a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 247966.3
The remainder is 1 after subtracting 9 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 8:
3 goes into 10 3 times with a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 247966.33
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.

The final outcome is 247966.33, with a leftover of 0.001.