We're going to solve 8900 multiplied by 1821
8900 × 1821 = 1821 × (8900)
+ 1821 × 0 that equals 0
+ 1821 × 00 producing 0
+ 1821 × 900 that equals 1638900
+ 1821 × 8000 that equals 14568000

= 16206900
