Alright, let's work through 5687 times 7800 step by step
5687 × 7800 = 7800 × (5687)
+ 7800 × 7 that results in 54600
+ 7800 × 80 giving us 624000
+ 7800 × 600 which equals 4680000
+ 7800 × 5000 that results in 39000000

= 44358600
