Alright, let's work through 7939 times 2439 step by step
7939 × 2439 = 2439 × (7939)
+ 2439 × 9 producing 21951
+ 2439 × 30 that equals 73170
+ 2439 × 900 what gives us 2195100
+ 2439 × 7000 what gives us 17073000

= 19363221
