No problem, we've got 4880 and 9540 to multiply
4880 × 9540 = 9540 × (4880)
+ 9540 × 0 that equals 0
+ 9540 × 80 what gives us 763200
+ 9540 × 800 resulting in 7632000
+ 9540 × 4000 which equals 38160000

= 46555200
