It's here, but I can't seem able to find how to use it

Don't get fooled about the fake value it showed to you since Dice cost nothing and provably that its not worth of your time to trade it.
Also I think if I'm not wrong the only trading pair available for dice is RUR and if you exchange it you will just get a cents. So ease up your hope that you can earn big on that token because Yobit is just deceiving you.
Also better stay away on Yobit and just trade on other more big or reliable exchange to make sure that you are safe from possible scams or hack since yobit have bad reputation. For sure you don't want to regret if something bad happen to you right?.