Alright, let's work through 16147615 times 28215418 step by step
16147615 × 28215418 = 28215418 × (16147615)
+ 28215418 × 5 giving us 141077090
+ 28215418 × 10 that is equal 282154180
+ 28215418 × 600 yielding 16929250800
+ 28215418 × 7000 resulting in 197507926000
+ 28215418 × 40000 that equals 1128616720000
+ 28215418 × 100000 yielding 2821541800000
+ 28215418 × 6000000 producing 169292508000000
+ 28215418 × 10000000 that results in 282154180000000

= 455611706928070
