Alright, let's work through 7279 times 5421 step by step
7279 × 5421 = 5421 × (7279)
+ 5421 × 9 that results in 48789
+ 5421 × 70 resulting in 379470
+ 5421 × 200 resulting in 1084200
+ 5421 × 7000 what gives us 37947000

= 39459459
