No problem, we've got 2838 and 6663 to multiply
2838 × 6663 = 6663 × (2838)
+ 6663 × 8 what gives us 53304
+ 6663 × 30 what gives us 199890
+ 6663 × 800 yielding 5330400
+ 6663 × 2000 resulting in 13326000

= 18909594
