Alright, let's work through 6290 times 7911 step by step
6290 × 7911 = 7911 × (6290)
+ 7911 × 0 yielding 0
+ 7911 × 90 which equals 711990
+ 7911 × 200 giving us 1582200
+ 7911 × 6000 that results in 47466000

= 49760190
