Alright, let's work through 79580034 times 15398545 step by step
79580034 × 15398545 = 15398545 × (79580034)
+ 15398545 × 4 what gives us 61594180
+ 15398545 × 30 which equals 461956350
+ 15398545 × 000 giving us 0
+ 15398545 × 0000 that results in 0
+ 15398545 × 80000 that equals 1231883600000
+ 15398545 × 500000 that results in 7699272500000
+ 15398545 × 9000000 which equals 138586905000000
+ 15398545 × 70000000 producing 1077898150000000

= 1225416734650530
