Alright, let's work through 8478 times 7879 step by step
8478 × 7879 = 7879 × (8478)
+ 7879 × 8 that is equal 63032
+ 7879 × 70 what gives us 551530
+ 7879 × 400 resulting in 3151600
+ 7879 × 8000 resulting in 63032000

= 66798162
