Alright, let's work through 68612131 times 90812421 step by step
68612131 × 90812421 = 90812421 × (68612131)
+ 90812421 × 1 producing 90812421
+ 90812421 × 30 which equals 2724372630
+ 90812421 × 100 that results in 9081242100
+ 90812421 × 2000 that results in 181624842000
+ 90812421 × 10000 what gives us 908124210000
+ 90812421 × 600000 giving us 54487452600000
+ 90812421 × 8000000 yielding 726499368000000
+ 90812421 × 60000000 that is equal 5448745260000000

= 6230833726079151
