Alright, let's work through 1491 times 9640 step by step
1491 × 9640 = 9640 × (1491)
+ 9640 × 1 that results in 9640
+ 9640 × 90 that is equal 867600
+ 9640 × 400 that results in 3856000
+ 9640 × 1000 yielding 9640000

= 14373240
