Alright, let's work through 6891 times 8062 step by step
6891 × 8062 = 8062 × (6891)
+ 8062 × 1 that is equal 8062
+ 8062 × 90 that results in 725580
+ 8062 × 800 which equals 6449600
+ 8062 × 6000 yielding 48372000

= 55555242
