Alright, let's work through 12134455 times 89634895 step by step
12134455 × 89634895 = 89634895 × (12134455)
+ 89634895 × 5 what gives us 448174475
+ 89634895 × 50 that results in 4481744750
+ 89634895 × 400 giving us 35853958000
+ 89634895 × 4000 that results in 358539580000
+ 89634895 × 30000 that results in 2689046850000
+ 89634895 × 100000 producing 8963489500000
+ 89634895 × 2000000 that is equal 179269790000000
+ 89634895 × 10000000 that is equal 896348950000000

= 1087670599807225
