Alright, let's work through 2783 times 2133 step by step
2783 × 2133 = 2133 × (2783)
+ 2133 × 3 that equals 6399
+ 2133 × 80 yielding 170640
+ 2133 × 700 what gives us 1493100
+ 2133 × 2000 giving us 4266000

= 5936139
