Alright, let's work through 7687 times 6813 step by step
7687 × 6813 = 6813 × (7687)
+ 6813 × 7 what gives us 47691
+ 6813 × 80 yielding 545040
+ 6813 × 600 that equals 4087800
+ 6813 × 7000 resulting in 47691000

= 52371531
