Alright, let's work through 3586 times 7764 step by step
3586 × 7764 = 7764 × (3586)
+ 7764 × 6 what gives us 46584
+ 7764 × 80 yielding 621120
+ 7764 × 500 that is equal 3882000
+ 7764 × 3000 that results in 23292000

= 27841704
