I do quite a bit of 6502 assembly (hobby only). And the only types of multiplications I’ve needed were either multiplying by a power of 2 (often if I’m using a

I do quite a bit of 6502 assembly (hobby only). And the only types of multiplications I’ve needed were either multiplying by a power of 2 (often if I’m using a data table where an entry is 2 bytes long and I need to calculate the index into the table), or multiplying by a known constant, which is solved by shift and add or a lookup table if I only ever need to multiply a small number of known values.