Alright, let's work through 8442 times 671 step by step
8442 × 671 = 671 × (8442)
+ 671 × 2 that is equal 1342
+ 671 × 40 what gives us 26840
+ 671 × 400 what gives us 268400
+ 671 × 8000 producing 5368000

= 5664582
