Alright, let's work through 1378 times 9877 step by step
1378 × 9877 = 9877 × (1378)
+ 9877 × 8 producing 79016
+ 9877 × 70 giving us 691390
+ 9877 × 300 yielding 2963100
+ 9877 × 1000 what gives us 9877000

= 13610506
