Alright, let's work through 79996994 times 54203579 step by step
79996994 × 54203579 = 54203579 × (79996994)
+ 54203579 × 4 producing 216814316
+ 54203579 × 90 that is equal 4878322110
+ 54203579 × 900 yielding 48783221100
+ 54203579 × 6000 that equals 325221474000
+ 54203579 × 90000 yielding 4878322110000
+ 54203579 × 900000 producing 48783221100000
+ 54203579 × 9000000 giving us 487832211000000
+ 54203579 × 70000000 that is equal 3794250530000000

= 4336123384041526
