Alright, let's work through 68680067 times 53007451 step by step
68680067 × 53007451 = 53007451 × (68680067)
+ 53007451 × 7 giving us 371052157
+ 53007451 × 60 producing 3180447060
+ 53007451 × 000 which equals 0
+ 53007451 × 0000 which equals 0
+ 53007451 × 80000 producing 4240596080000
+ 53007451 × 600000 that results in 31804470600000
+ 53007451 × 8000000 yielding 424059608000000
+ 53007451 × 60000000 resulting in 3180447060000000

= 3640555286179217
