Alright, let's work through 41388121 times 2156528 step by step
41388121 × 2156528 = 2156528 × (41388121)
+ 2156528 × 1 which equals 2156528
+ 2156528 × 20 which equals 43130560
+ 2156528 × 100 yielding 215652800
+ 2156528 × 8000 yielding 17252224000
+ 2156528 × 80000 giving us 172522240000
+ 2156528 × 300000 that equals 646958400000
+ 2156528 × 1000000 resulting in 2156528000000
+ 2156528 × 40000000 that results in 86261120000000

= 89254641803888
