Alright, let's work through 6870 times 676 step by step
6870 × 676 = 676 × (6870)
+ 676 × 0 giving us 0
+ 676 × 70 yielding 47320
+ 676 × 800 yielding 540800
+ 676 × 6000 producing 4056000

= 4644120
