No problem, we've got 7040 and 2664 to multiply
7040 × 2664 = 2664 × (7040)
+ 2664 × 0 that equals 0
+ 2664 × 40 giving us 106560
+ 2664 × 000 which equals 0
+ 2664 × 7000 which equals 18648000

= 18754560
