Are the odds actually correct in the number generator formula?

OK so I have question regarding the odds of getting the numbers 1 to 6 in the random generator formula used in this course, as it seems to me that something is wrong (ie. some numbers are more likely to be spit out than others). I hope I am wrong, here goes:

Math.random() generates a number that is between 0 and 1 but not including 1, which for simplicity's sake I will deal with as if it has only 1 decimal in my description below, I don't think this affects the reasoning?

Imagine that what Math.random() generated was 0.1: the result of the formula (after we multiply by 6, then floor down the result to the first integer below and add 1) will be 1. This is because 0.6 rounds down to 0 and then we add the 1.

If the result was 0.2, then the result will be 2. (1.2 rounds down to 1 and then we add the 1)

The problem starts here as it is the same for 0.3 (as 1.8 floors down to 1 again), so already the chances of getting a 2 as the final result are greater.

I will now skip the explanation for the following numbers.

0.4 -> 3 0.5 -> 4 0.6 -> 4 0.7 -> 5 0.8 -> 5 0.9 -> 6

As you can see, the chances of getting 1, 3 and 6 are smaller than getting 2, 4 and 5.

Or I am completely wrong about how important the other decimals are.

Thank you and apologies if this was silly.