No problem, we've got 4480 and 3385 to multiply
4480 × 3385 = 3385 × (4480)
+ 3385 × 0 that equals 0
+ 3385 × 80 what gives us 270800
+ 3385 × 400 giving us 1354000
+ 3385 × 4000 yielding 13540000

= 15164800
