Alright, let's work through 8498 times 90 step by step
8498 × 90 = 90 × (8498)
+ 90 × 8 that results in 720
+ 90 × 90 yielding 8100
+ 90 × 400 what gives us 36000
+ 90 × 8000 that is equal 720000

= 764820
