Alright, let's work through 61687982 times 18720068 step by step
61687982 × 18720068 = 18720068 × (61687982)
+ 18720068 × 2 yielding 37440136
+ 18720068 × 80 resulting in 1497605440
+ 18720068 × 900 resulting in 16848061200
+ 18720068 × 7000 yielding 131040476000
+ 18720068 × 80000 that results in 1497605440000
+ 18720068 × 600000 giving us 11232040800000
+ 18720068 × 1000000 that equals 18720068000000
+ 18720068 × 60000000 yielding 1123204080000000

= 1154803217822776
