Alright, let's work through 3613 times 1778 step by step
3613 × 1778 = 1778 × (3613)
+ 1778 × 3 giving us 5334
+ 1778 × 10 that equals 17780
+ 1778 × 600 what gives us 1066800
+ 1778 × 3000 that equals 5334000

= 6423914
