You have N people - you give each of them 1/N of the total to distribute as they see fit among the other N-1 people excluding themselves.

Each person then gets some assigned fraction of the total.

One can allow for different subjective valuations and payments in kind as well by means of an auction which guarantees everyone gets at least their subjective eveluation of what constitutes their share.

Oye, vatos, dees English sink todos mi ships, chinga sus madres, so escuche: el fleet es ahora refloated, OK? — The War Nerd