Give 10% to Habitat for Humanity.
Divide remaining cash in half. Divide one-half by number of kids. Use each portion to pay off the mortgage on each kid's house.
Put 1/2 remainder of each portion in a CD with interest paid into checking account. Put remaining 1/2 into that checking account. Give each kid an ATM card for their account.
Take my half and lease a stateroom on a luxury liner for six months to a year. Go around the world several times.
Take some money and go to the casino in Monte Carlo