Alright, let's work through 72625560 times 72123317 step by step
72625560 × 72123317 = 72123317 × (72625560)
+ 72123317 × 0 giving us 0
+ 72123317 × 60 resulting in 4327399020
+ 72123317 × 500 resulting in 36061658500
+ 72123317 × 5000 what gives us 360616585000
+ 72123317 × 20000 what gives us 1442466340000
+ 72123317 × 600000 that is equal 43273990200000
+ 72123317 × 2000000 yielding 144246634000000
+ 72123317 × 70000000 that equals 5048632190000000

= 5237996286182520
