Alright, let's work through 72625402 times 56343836 step by step
72625402 × 56343836 = 56343836 × (72625402)
+ 56343836 × 2 that results in 112687672
+ 56343836 × 00 resulting in 0
+ 56343836 × 400 resulting in 22537534400
+ 56343836 × 5000 what gives us 281719180000
+ 56343836 × 20000 that equals 1126876720000
+ 56343836 × 600000 which equals 33806301600000
+ 56343836 × 2000000 resulting in 112687672000000
+ 56343836 × 70000000 giving us 3944068520000000

= 4091993739722072
