No problem, we've got 7818 and 1440 to multiply
7818 × 1440 = 1440 × (7818)
+ 1440 × 8 which equals 11520
+ 1440 × 10 yielding 14400
+ 1440 × 800 giving us 1152000
+ 1440 × 7000 what gives us 10080000

= 11257920
