Alright, let's work through 7814 times 7872 step by step
7814 × 7872 = 7872 × (7814)
+ 7872 × 4 yielding 31488
+ 7872 × 10 that is equal 78720
+ 7872 × 800 that results in 6297600
+ 7872 × 7000 which equals 55104000

= 61511808
