Alright, let's work through 67345321 times 53705679 step by step
67345321 × 53705679 = 53705679 × (67345321)
+ 53705679 × 1 producing 53705679
+ 53705679 × 20 that results in 1074113580
+ 53705679 × 300 yielding 16111703700
+ 53705679 × 5000 yielding 268528395000
+ 53705679 × 40000 that equals 2148227160000
+ 53705679 × 300000 that is equal 16111703700000
+ 53705679 × 7000000 what gives us 375939753000000
+ 53705679 × 60000000 yielding 3222340740000000

= 3616826191777959
