Alright, let's work through 74519999 times 78237773 step by step
74519999 × 78237773 = 78237773 × (74519999)
+ 78237773 × 9 giving us 704139957
+ 78237773 × 90 that results in 7041399570
+ 78237773 × 900 yielding 70413995700
+ 78237773 × 9000 that equals 704139957000
+ 78237773 × 10000 producing 782377730000
+ 78237773 × 500000 yielding 39118886500000
+ 78237773 × 4000000 resulting in 312951092000000
+ 78237773 × 70000000 that is equal 5476644110000000

= 5830278765722227
