Alright, let's work through 1890 times 4240 step by step
1890 × 4240 = 4240 × (1890)
+ 4240 × 0 which equals 0
+ 4240 × 90 that results in 381600
+ 4240 × 800 yielding 3392000
+ 4240 × 1000 that results in 4240000

= 8013600
