Alright, let's work through 79276891 times 75334137 step by step
79276891 × 75334137 = 75334137 × (79276891)
+ 75334137 × 1 what gives us 75334137
+ 75334137 × 90 which equals 6780072330
+ 75334137 × 800 that equals 60267309600
+ 75334137 × 6000 what gives us 452004822000
+ 75334137 × 70000 that equals 5273389590000
+ 75334137 × 200000 which equals 15066827400000
+ 75334137 × 9000000 that equals 678007233000000
+ 75334137 × 70000000 giving us 5273389590000000

= 5972256167528067
