Alright, let's work through 71491747 times 29757465 step by step
71491747 × 29757465 = 29757465 × (71491747)
+ 29757465 × 7 that is equal 208302255
+ 29757465 × 40 giving us 1190298600
+ 29757465 × 700 that equals 20830225500
+ 29757465 × 1000 that equals 29757465000
+ 29757465 × 90000 what gives us 2678171850000
+ 29757465 × 400000 yielding 11902986000000
+ 29757465 × 1000000 what gives us 29757465000000
+ 29757465 × 70000000 that is equal 2083022550000000

= 2127413159141355
