No problem, we've got 7410 and 7780 to multiply
7410 × 7780 = 7780 × (7410)
+ 7780 × 0 what gives us 0
+ 7780 × 10 that results in 77800
+ 7780 × 400 giving us 3112000
+ 7780 × 7000 which equals 54460000

= 57649800
