Alright, let's work through 6143 times 7129 step by step
6143 × 7129 = 7129 × (6143)
+ 7129 × 3 which equals 21387
+ 7129 × 40 what gives us 285160
+ 7129 × 100 what gives us 712900
+ 7129 × 6000 what gives us 42774000

= 43793447
