We're going to solve 2781 multiplied by 2291
2781 × 2291 = 2291 × (2781)
+ 2291 × 1 that equals 2291
+ 2291 × 80 that equals 183280
+ 2291 × 700 what gives us 1603700
+ 2291 × 2000 that equals 4582000

= 6371271
