Alright, let's work through 8122 times 6475 step by step
8122 × 6475 = 6475 × (8122)
+ 6475 × 2 that equals 12950
+ 6475 × 20 which equals 129500
+ 6475 × 100 yielding 647500
+ 6475 × 8000 what gives us 51800000

= 52589950
