No problem, we've got 1966 and 3165 to multiply
1966 × 3165 = 3165 × (1966)
+ 3165 × 6 that results in 18990
+ 3165 × 60 that results in 189900
+ 3165 × 900 resulting in 2848500
+ 3165 × 1000 that results in 3165000

= 6222390
