Alright, let's work through 4019 times 620 step by step
4019 × 620 = 620 × (4019)
+ 620 × 9 that equals 5580
+ 620 × 10 that results in 6200
+ 620 × 000 resulting in 0
+ 620 × 4000 that equals 2480000

= 2491780
