How is the sum of 300,0 Saudi Riyals, which is the value of the deceased's house, to be distributed among the mentioned heirs: seven sons, one daughter, and one wife?

The wife receives one-eighth due to the existence of a direct heir. Allah Almighty says: "But if you have a child, then for them [the wives] is one-eighth of what you leave." The remainder goes to the seven sons and the daughter by way of ta'sib (residuary heirship), with the male receiving the share of two females, as Allah Almighty says: "Allah instructs you concerning your children: for the male, what is equal to the share of two females." The inheritance is divided into 120 shares: the wife receives 15 shares, each son receives 14 shares, and the daughter receives 7 shares.