How to divide father's property? And money from father's job?

We sold property which was registered on father name. Father expired in 1990. I have one step brother. I have a sister as well. My mother , step brother and sister and me are alive. Will the property be divided equally. My father was in a government job, which my mother got after expiry and after retirement she got lumpsum money. Will that also be divided? The property was father's self made.