Alright, let's work through 55603654 times 18006409 step by step
55603654 × 18006409 = 18006409 × (55603654)
+ 18006409 × 4 giving us 72025636
+ 18006409 × 50 which equals 900320450
+ 18006409 × 600 what gives us 10803845400
+ 18006409 × 3000 yielding 54019227000
+ 18006409 × 00000 that results in 0
+ 18006409 × 600000 which equals 10803845400000
+ 18006409 × 5000000 that results in 90032045000000
+ 18006409 × 50000000 what gives us 900320450000000

= 1001222135818486
