Alright, let's work through 61680512 times 80638772 step by step
61680512 × 80638772 = 80638772 × (61680512)
+ 80638772 × 2 that equals 161277544
+ 80638772 × 10 resulting in 806387720
+ 80638772 × 500 that results in 40319386000
+ 80638772 × 0000 producing 0
+ 80638772 × 80000 that results in 6451101760000
+ 80638772 × 600000 giving us 48383263200000
+ 80638772 × 1000000 which equals 80638772000000
+ 80638772 × 60000000 yielding 4838326320000000

= 4973840744011264
