Alright, let's work through 3445 times 878 step by step
3445 × 878 = 878 × (3445)
+ 878 × 5 yielding 4390
+ 878 × 40 producing 35120
+ 878 × 400 what gives us 351200
+ 878 × 3000 that is equal 2634000

= 3024710
