Alright, let's work through 3641 times 805 step by step
3641 × 805 = 805 × (3641)
+ 805 × 1 which equals 805
+ 805 × 40 that is equal 32200
+ 805 × 600 that is equal 483000
+ 805 × 3000 yielding 2415000

= 2931005
