Alright, let's work through 8225 times 8455 step by step
8225 × 8455 = 8455 × (8225)
+ 8455 × 5 what gives us 42275
+ 8455 × 20 that is equal 169100
+ 8455 × 200 that equals 1691000
+ 8455 × 8000 producing 67640000

= 69542375
