How is my husband's estate to be divided among me, my two children, his parents, his three brothers, and his sister?

If a person dies and is survived by: a wife, two children, two parents, and siblings (brothers and a sister); then the inheritance is divided as follows: the wife receives one-eighth due to the presence of children, and each parent (father and mother) receives one-sixth due to the presence of children. The remainder goes to the two children; if they are both males, they divide it equally. If they are a male and a female, then the male receives the share of two females. The siblings (brothers and sister) receive nothing.