Alright, let's work through 1370 times 9129 step by step
1370 × 9129 = 9129 × (1370)
+ 9129 × 0 yielding 0
+ 9129 × 70 that is equal 639030
+ 9129 × 300 resulting in 2738700
+ 9129 × 1000 that is equal 9129000

= 12506730
