Alright, let's work through 2915 times 7990 step by step
2915 × 7990 = 7990 × (2915)
+ 7990 × 5 that results in 39950
+ 7990 × 10 that results in 79900
+ 7990 × 900 resulting in 7191000
+ 7990 × 2000 what gives us 15980000

= 23290850
