Alright, let's work through 1615 times 2492 step by step
1615 × 2492 = 2492 × (1615)
+ 2492 × 5 which equals 12460
+ 2492 × 10 which equals 24920
+ 2492 × 600 giving us 1495200
+ 2492 × 1000 producing 2492000

= 4024580
