We're going to solve 1669 multiplied by 7821
1669 × 7821 = 7821 × (1669)
+ 7821 × 9 yielding 70389
+ 7821 × 60 resulting in 469260
+ 7821 × 600 that equals 4692600
+ 7821 × 1000 that is equal 7821000

= 13053249
