46 years after the death of King Harold Godwinson, we're left with this.
Most of these numbers are useless. But some of them aren't. Find them, and use those to find the rest of them. Once you've done that, the single-word answer should be easy to solve.
23324
85317322321754704879777291854038065291180855854683596337771
78794269525655159909204582004825617358941100876380304651981
58335819297909357315844266481233150484220623750537589976052