Alright, let's work through 7870 times 2785 step by step
7870 × 2785 = 2785 × (7870)
+ 2785 × 0 that equals 0
+ 2785 × 70 producing 194950
+ 2785 × 800 producing 2228000
+ 2785 × 7000 yielding 19495000

= 21917950
