Alright, let's work through 71965396 times 72584723 step by step
71965396 × 72584723 = 72584723 × (71965396)
+ 72584723 × 6 which equals 435508338
+ 72584723 × 90 yielding 6532625070
+ 72584723 × 300 that results in 21775416900
+ 72584723 × 5000 that results in 362923615000
+ 72584723 × 60000 yielding 4355083380000
+ 72584723 × 900000 resulting in 65326250700000
+ 72584723 × 1000000 that is equal 72584723000000
+ 72584723 × 70000000 resulting in 5080930610000000

= 5223588334245308
