No problem, we've got 2544 and 2320 to multiply
2544 × 2320 = 2320 × (2544)
+ 2320 × 4 what gives us 9280
+ 2320 × 40 giving us 92800
+ 2320 × 500 what gives us 1160000
+ 2320 × 2000 producing 4640000

= 5902080
