Alright, let's work through 9878 times 7124 step by step
9878 × 7124 = 7124 × (9878)
+ 7124 × 8 that is equal 56992
+ 7124 × 70 which equals 498680
+ 7124 × 800 yielding 5699200
+ 7124 × 9000 which equals 64116000

= 70370872
