Alright, let's work through 1380 times 9929 step by step
1380 × 9929 = 9929 × (1380)
+ 9929 × 0 what gives us 0
+ 9929 × 80 yielding 794320
+ 9929 × 300 producing 2978700
+ 9929 × 1000 that results in 9929000

= 13702020
