How is the inheritance calculated for two male heirs (two grandsons through a son) and four female heirs (two daughters, one wife, and one paternal grandmother)?

If the deceased leaves behind only his paternal grandmother, his wife, two daughters, and two grandsons (sons of his son), then the grandmother receives one-sixth, the wife receives one-eighth due to the presence of a direct heir, the two daughters receive two-thirds, and the remainder goes to the two grandsons by way of ta'sib (agnatic inheritance). The inheritance is divided into forty-eight shares.