A researcher has found four algorithms embedded into the New York State voter roll database that can alter data, have been used to generate spurious votes, and are not available to County board of elections.
As anyone who knows anything about IT security, there is no way to save that database, it must be deleted and rebuilt from scratch. This is the only way to be sure. It also means that no election using that database can ever be trusted again, forever.
Well, a repunit isn't either division or modulus division.
How many times a number can be divided sounds like modulus division.