Alright, let's work through 72261415 times 68106262 step by step
72261415 × 68106262 = 68106262 × (72261415)
+ 68106262 × 5 resulting in 340531310
+ 68106262 × 10 yielding 681062620
+ 68106262 × 400 that equals 27242504800
+ 68106262 × 1000 that results in 68106262000
+ 68106262 × 60000 that is equal 4086375720000
+ 68106262 × 200000 that equals 13621252400000
+ 68106262 × 2000000 resulting in 136212524000000
+ 68106262 × 70000000 that equals 4767438340000000

= 4921454862480730
