Alright, let's work through 2143 times 6290 step by step
2143 × 6290 = 6290 × (2143)
+ 6290 × 3 what gives us 18870
+ 6290 × 40 that is equal 251600
+ 6290 × 100 producing 629000
+ 6290 × 2000 that results in 12580000

= 13479470
