History Database 6.1.2 our production has 66 million rows on jobhistory table too large to move to history DB does anyone have script too help!!

The system was install by another person and never got history db working.  Our system is almost at a state where is not able to process.  We have a large DB server 128 gigs of ram shows 40 core 2 slots hyperthreaded.

Does anyone have script or a way to mass move the history data to the history database