Alright, let's work through 79824354 times 9712216 step by step
79824354 × 9712216 = 9712216 × (79824354)
+ 9712216 × 4 giving us 38848864
+ 9712216 × 50 producing 485610800
+ 9712216 × 300 yielding 2913664800
+ 9712216 × 4000 what gives us 38848864000
+ 9712216 × 20000 that is equal 194244320000
+ 9712216 × 800000 what gives us 7769772800000
+ 9712216 × 9000000 yielding 87409944000000
+ 9712216 × 70000000 resulting in 679855120000000

= 775271368108464
