Newb bittrex question

[photonfanatic]

Can someone explain why the decimal points on bittrex appear to be way off? I tried to buy 1 btc worth of SEC, and it looks like I've now got .999+ of both.

So I went back and tried to do another order, and even putting in all the bitcoin I have on the exchange, it still says I will only be receiving .1xxxx worth of SEC. That's .1, and not 1,000,000+ like it should be. I'm utterly confused by this lol