Of course it's impossible to hit that number in "every spin" because freebitco will get bankrupt easily as everybody will play on hi lo with the jackpot on, however it is possible to hit that number sometimes.
I was actively playing hi lo game on freebitco before and I can get that number but the only problem is that I just play normally without activating the jackpots because I know that it will only drain my money fast and as usual there is that regret feeling because I can sometimes hit that number within a few rolls only on some of my sessions. My only hope for now is to win some decent prize in the hourly free roll as there's no risk on this one.
I never pay attention to whether I have ever got the jackpot numbers or not, because I used to play auto bet during promotions and leave it to do another activity, I think the jackpot is only played by big players or those who are indeed trying their luck only.
I think most of the people who are bold play the jackpot as it costs more than leaving auto bet on the multiply btc which has better chances to continue playing more than playing just for the jackpot.Therefore people like to play as long as possible during promotional periods so they can increase their winnings of lottery tickets,reward points and even golden tickets,when playing for jackpots you tend to lose money really fast and that is why only bold people try that,I personally never tried it and am never going to because I know I am not that lucky to win a jackpot.