No problem, we've got 1645 and 2066 to multiply
1645 × 2066 = 2066 × (1645)
+ 2066 × 5 yielding 10330
+ 2066 × 40 what gives us 82640
+ 2066 × 600 yielding 1239600
+ 2066 × 1000 that is equal 2066000

= 3398570
