Alright, let's work through 80253979 times 37338880 step by step
80253979 × 37338880 = 37338880 × (80253979)
+ 37338880 × 9 what gives us 336049920
+ 37338880 × 70 that results in 2613721600
+ 37338880 × 900 that equals 33604992000
+ 37338880 × 3000 that results in 112016640000
+ 37338880 × 50000 producing 1866944000000
+ 37338880 × 200000 resulting in 7467776000000
+ 37338880 × 0000000 resulting in 0
+ 37338880 × 80000000 yielding 2987110400000000

= 2996593691403520
