We're going to solve 1899 multiplied by 8143
1899 × 8143 = 8143 × (1899)
+ 8143 × 9 producing 73287
+ 8143 × 90 that is equal 732870
+ 8143 × 800 yielding 6514400
+ 8143 × 1000 producing 8143000

= 15463557
