Alright, let's work through 6489 times 1386 step by step
6489 × 1386 = 1386 × (6489)
+ 1386 × 9 that results in 12474
+ 1386 × 80 that is equal 110880
+ 1386 × 400 that equals 554400
+ 1386 × 6000 producing 8316000

= 8993754
