Alright, let's work through 8198 times 9421 step by step
8198 × 9421 = 9421 × (8198)
+ 9421 × 8 that is equal 75368
+ 9421 × 90 giving us 847890
+ 9421 × 100 that results in 942100
+ 9421 × 8000 yielding 75368000

= 77233358
