No problem, we've got 7409 and 2879 to multiply
7409 × 2879 = 2879 × (7409)
+ 2879 × 9 which equals 25911
+ 2879 × 00 giving us 0
+ 2879 × 400 which equals 1151600
+ 2879 × 7000 what gives us 20153000

= 21330511
