Alright, let's work through 3729 times 7769 step by step
3729 × 7769 = 7769 × (3729)
+ 7769 × 9 which equals 69921
+ 7769 × 20 what gives us 155380
+ 7769 × 700 giving us 5438300
+ 7769 × 3000 that equals 23307000

= 28970601
