Alright, let's work through 55505459 times 20108013 step by step
55505459 × 20108013 = 20108013 × (55505459)
+ 20108013 × 9 that equals 180972117
+ 20108013 × 50 that is equal 1005400650
+ 20108013 × 400 yielding 8043205200
+ 20108013 × 5000 producing 100540065000
+ 20108013 × 00000 that results in 0
+ 20108013 × 500000 yielding 10054006500000
+ 20108013 × 5000000 producing 100540065000000
+ 20108013 × 50000000 that is equal 1005400650000000

= 1116104491142967
