Alright, let's work through 9150243 times 42997391 step by step
9150243 × 42997391 = 42997391 × (9150243)
+ 42997391 × 3 producing 128992173
+ 42997391 × 40 yielding 1719895640
+ 42997391 × 200 yielding 8599478200
+ 42997391 × 0000 that is equal 0
+ 42997391 × 50000 producing 2149869550000
+ 42997391 × 100000 yielding 4299739100000
+ 42997391 × 9000000 what gives us 386976519000000

= 393436576016013
