No problem, we've got 2645 and 1289 to multiply
2645 × 1289 = 1289 × (2645)
+ 1289 × 5 resulting in 6445
+ 1289 × 40 what gives us 51560
+ 1289 × 600 that equals 773400
+ 1289 × 2000 yielding 2578000

= 3409405
