Alright, let's work through 71976379 times 58631801 step by step
71976379 × 58631801 = 58631801 × (71976379)
+ 58631801 × 9 producing 527686209
+ 58631801 × 70 giving us 4104226070
+ 58631801 × 300 that is equal 17589540300
+ 58631801 × 6000 resulting in 351790806000
+ 58631801 × 70000 producing 4104226070000
+ 58631801 × 900000 giving us 52768620900000
+ 58631801 × 1000000 that is equal 58631801000000
+ 58631801 × 70000000 resulting in 4104226070000000

= 4220104730228579
