We're going to solve 7664 multiplied by 1821
7664 × 1821 = 1821 × (7664)
+ 1821 × 4 producing 7284
+ 1821 × 60 resulting in 109260
+ 1821 × 600 that equals 1092600
+ 1821 × 7000 yielding 12747000

= 13956144
