Alright, let's work through 7531 times 2797 step by step
7531 × 2797 = 2797 × (7531)
+ 2797 × 1 what gives us 2797
+ 2797 × 30 that is equal 83910
+ 2797 × 500 that is equal 1398500
+ 2797 × 7000 which equals 19579000

= 21064207
