How is the inheritance divided among 5 sons, 3 daughters, 2 wives, 4 full sisters, 2 half-sisters (from the father's side), a paternal nephew, and a full paternal cousin, with the presence of a pregnancy for the deceased's son's wife, written wills, and outstanding debts to the Agricultural Development Bank with fixed interest, knowing that the wills are in unregistered contracts?

A man's bequest of part of his estate to one of his sons is religiously invalid, as it constitutes a bequest to an heir. The deceased's debt must be settled from the estate before its division, with only the principal amount of the debt being repaid if the loan was interest-bearing. If a person dies leaving behind two wives, five sons, and three daughters, without a father, mother, or grandfather, then the two wives receive one-eighth of the estate, to be divided between them. The remainder is to be divided among the sons and daughters, with the male receiving the share of two females. Nothing goes to the sisters, nephews, paternal uncles, or the pregnant wife of a son, as they are excluded by the direct son. Furthermore, slandering the stepmother must be avoided. It is recommended to refer inheritance matters to Sharia courts, as there may be issues unknown to the heirs, such as debts, bequests, or other rights.