Alright, let's work through 7810 times 2420 step by step
7810 × 2420 = 2420 × (7810)
+ 2420 × 0 which equals 0
+ 2420 × 10 that results in 24200
+ 2420 × 800 yielding 1936000
+ 2420 × 7000 resulting in 16940000

= 18900200
