No problem, we've got 3840 and 819 to multiply
3840 × 819 = 819 × (3840)
+ 819 × 0 resulting in 0
+ 819 × 40 which equals 32760
+ 819 × 800 that results in 655200
+ 819 × 3000 that is equal 2457000

= 3144960
