No problem, we've got 1966 and 6561 to multiply
1966 × 6561 = 6561 × (1966)
+ 6561 × 6 yielding 39366
+ 6561 × 60 giving us 393660
+ 6561 × 900 that equals 5904900
+ 6561 × 1000 resulting in 6561000

= 12898926
