Alright, let's work through 4373 times 9640 step by step
4373 × 9640 = 9640 × (4373)
+ 9640 × 3 giving us 28920
+ 9640 × 70 producing 674800
+ 9640 × 300 that is equal 2892000
+ 9640 × 4000 what gives us 38560000

= 42155720
