Alright, let's work through 67823141 times 67839545 step by step
67823141 × 67839545 = 67839545 × (67823141)
+ 67839545 × 1 that results in 67839545
+ 67839545 × 40 resulting in 2713581800
+ 67839545 × 100 that equals 6783954500
+ 67839545 × 3000 producing 203518635000
+ 67839545 × 20000 producing 1356790900000
+ 67839545 × 800000 what gives us 54271636000000
+ 67839545 × 7000000 which equals 474876815000000
+ 67839545 × 60000000 that equals 4070372700000000

= 4601091025910845
