Alright, let's work through 84108518 times 17718213 step by step
84108518 × 17718213 = 17718213 × (84108518)
+ 17718213 × 8 resulting in 141745704
+ 17718213 × 10 that is equal 177182130
+ 17718213 × 500 yielding 8859106500
+ 17718213 × 8000 resulting in 141745704000
+ 17718213 × 00000 that equals 0
+ 17718213 × 100000 giving us 1771821300000
+ 17718213 × 4000000 that results in 70872852000000
+ 17718213 × 80000000 producing 1417457040000000

= 1490252637038334
