Alright, let's work through 3786 times 2973 step by step
3786 × 2973 = 2973 × (3786)
+ 2973 × 6 that results in 17838
+ 2973 × 80 what gives us 237840
+ 2973 × 700 that results in 2081100
+ 2973 × 3000 that is equal 8919000

= 11255778
