No problem, we've got 7780 and 6111 to multiply
7780 × 6111 = 6111 × (7780)
+ 6111 × 0 what gives us 0
+ 6111 × 80 that is equal 488880
+ 6111 × 700 giving us 4277700
+ 6111 × 7000 which equals 42777000

= 47543580
