Alright, let's work through 16166479 times 26506917 step by step
16166479 × 26506917 = 26506917 × (16166479)
+ 26506917 × 9 yielding 238562253
+ 26506917 × 70 what gives us 1855484190
+ 26506917 × 400 that is equal 10602766800
+ 26506917 × 6000 that results in 159041502000
+ 26506917 × 60000 that is equal 1590415020000
+ 26506917 × 100000 that results in 2650691700000
+ 26506917 × 6000000 producing 159041502000000
+ 26506917 × 10000000 that is equal 265069170000000

= 428523517035243
