Alright, let's work through 1165 times 1621 step by step
1165 × 1621 = 1621 × (1165)
+ 1621 × 5 resulting in 8105
+ 1621 × 60 that equals 97260
+ 1621 × 100 that equals 162100
+ 1621 × 1000 yielding 1621000

= 1888465
