Alright, let's work through 97512156 times 99681013 step by step
97512156 × 99681013 = 99681013 × (97512156)
+ 99681013 × 6 that results in 598086078
+ 99681013 × 50 yielding 4984050650
+ 99681013 × 100 that equals 9968101300
+ 99681013 × 2000 that results in 199362026000
+ 99681013 × 10000 what gives us 996810130000
+ 99681013 × 500000 yielding 49840506500000
+ 99681013 × 7000000 producing 697767091000000
+ 99681013 × 90000000 yielding 8971291170000000

= 9720110489894028
