Alright, let's work through 6121 times 1073 step by step
6121 × 1073 = 1073 × (6121)
+ 1073 × 1 producing 1073
+ 1073 × 20 resulting in 21460
+ 1073 × 100 which equals 107300
+ 1073 × 6000 what gives us 6438000

= 6567833
