Alright, let's work through 55505212 times 84321321 step by step
55505212 × 84321321 = 84321321 × (55505212)
+ 84321321 × 2 producing 168642642
+ 84321321 × 10 that results in 843213210
+ 84321321 × 200 yielding 16864264200
+ 84321321 × 5000 resulting in 421606605000
+ 84321321 × 00000 giving us 0
+ 84321321 × 500000 resulting in 42160660500000
+ 84321321 × 5000000 that is equal 421606605000000
+ 84321321 × 50000000 producing 4216066050000000

= 4680272798225052
