Alright, let's work through 97489687 times 93687561 step by step
97489687 × 93687561 = 93687561 × (97489687)
+ 93687561 × 7 that is equal 655812927
+ 93687561 × 80 which equals 7495004880
+ 93687561 × 600 which equals 56212536600
+ 93687561 × 9000 that results in 843188049000
+ 93687561 × 80000 yielding 7495004880000
+ 93687561 × 400000 which equals 37475024400000
+ 93687561 × 7000000 that equals 655812927000000
+ 93687561 × 90000000 that is equal 8431880490000000

= 9133570997683407
