Alright, let's work through 85242010 times 97536378 step by step
85242010 × 97536378 = 97536378 × (85242010)
+ 97536378 × 0 what gives us 0
+ 97536378 × 10 that equals 975363780
+ 97536378 × 000 which equals 0
+ 97536378 × 2000 producing 195072756000
+ 97536378 × 40000 what gives us 3901455120000
+ 97536378 × 200000 that equals 19507275600000
+ 97536378 × 5000000 producing 487681890000000
+ 97536378 × 80000000 that equals 7802910240000000

= 8314196908839780
