How is the inheritance divided among the mentioned heirs: (son of a son) 1, (paternal brother) 3, (daughter of a son) 3, (wife) 1, and (full sister) 3?

If the deceased left only the aforementioned heirs, then his wife receives one-eighth due to the presence of a direct descendant. The remainder goes to the son's son and the son's daughters, by way of ta'sib (residuary heirship), with the male receiving the share of two females, in accordance with Allah Almighty's saying: "Allah instructs you concerning your children: for the male, what is equal to the share of two females." The brothers and sisters receive nothing, as they are completely excluded by the son's son. The inheritance is divided into forty shares: the wife receives five shares, the son's son fourteen shares, and each daughter of the son seven shares.