How is the inheritance divided among: one (grandson), three (daughters), three (granddaughters), and one (wife)?

If the deceased left only male heirs, then his wife receives one-eighth as a prescribed share, and his three daughters receive two-thirds as a prescribed share. The remainder goes to the son of the son and the daughters of the son by way of ta'sib (agnatic inheritance), with the male receiving the equivalent of two females' shares. The estate is divided into seventy-two shares: the wife receives nine shares, the three daughters receive forty-eight shares (sixteen for each), the son of the son receives six shares, and each of the daughters of the son receives three shares.