Alright, let's work through 2615 times 826 step by step
2615 × 826 = 826 × (2615)
+ 826 × 5 that is equal 4130
+ 826 × 10 which equals 8260
+ 826 × 600 that equals 495600
+ 826 × 2000 that equals 1652000

= 2159990
