No problem, we've got 4664 and 1920 to multiply
4664 × 1920 = 1920 × (4664)
+ 1920 × 4 that equals 7680
+ 1920 × 60 giving us 115200
+ 1920 × 600 which equals 1152000
+ 1920 × 4000 which equals 7680000

= 8954880
