Alright, let's work through 70780023 times 73994779 step by step
70780023 × 73994779 = 73994779 × (70780023)
+ 73994779 × 3 resulting in 221984337
+ 73994779 × 20 producing 1479895580
+ 73994779 × 000 giving us 0
+ 73994779 × 0000 yielding 0
+ 73994779 × 80000 giving us 5919582320000
+ 73994779 × 700000 giving us 51796345300000
+ 73994779 × 0000000 that is equal 0
+ 73994779 × 70000000 producing 5179634530000000

= 5237352159499917
