According to the PR you get .0234 shares of Hurasu for every 100 shares so this is how I break it down:
12.50pps/.0234= 534.18 how many FFGO shares it takes to get one share of Huraru
1,000,000/100= 10,000
10,000/534.18= 18.72 shares of Hurasu
This is how the dividend will be paid out, not just 1 share for every 100 shares, its much more complex than that and I just broke it down for you guys.