Alright, let's work through 8100 times 8250 step by step
8100 × 8250 = 8250 × (8100)
+ 8250 × 0 that is equal 0
+ 8250 × 00 which equals 0
+ 8250 × 100 what gives us 825000
+ 8250 × 8000 giving us 66000000

= 66825000
