Alright, let's work through 8148 times 8430 step by step
8148 × 8430 = 8430 × (8148)
+ 8430 × 8 which equals 67440
+ 8430 × 40 yielding 337200
+ 8430 × 100 which equals 843000
+ 8430 × 8000 that is equal 67440000

= 68687640
