Alright, let's work through 79887171 times 97318316 step by step
79887171 × 97318316 = 97318316 × (79887171)
+ 97318316 × 1 producing 97318316
+ 97318316 × 70 resulting in 6812282120
+ 97318316 × 100 which equals 9731831600
+ 97318316 × 7000 giving us 681228212000
+ 97318316 × 80000 that is equal 7785465280000
+ 97318316 × 800000 that equals 77854652800000
+ 97318316 × 9000000 what gives us 875864844000000
+ 97318316 × 70000000 resulting in 6812282120000000

= 7774484951724036
