No problem, we've got 2640 and 1854 to multiply
2640 × 1854 = 1854 × (2640)
+ 1854 × 0 that equals 0
+ 1854 × 40 which equals 74160
+ 1854 × 600 which equals 1112400
+ 1854 × 2000 what gives us 3708000

= 4894560
