Alright, let's work through 40205420 times 89770318 step by step
40205420 × 89770318 = 89770318 × (40205420)
+ 89770318 × 0 which equals 0
+ 89770318 × 20 that equals 1795406360
+ 89770318 × 400 resulting in 35908127200
+ 89770318 × 5000 yielding 448851590000
+ 89770318 × 00000 giving us 0
+ 89770318 × 200000 that is equal 17954063600000
+ 89770318 × 0000000 that is equal 0
+ 89770318 × 40000000 that results in 3590812720000000

= 3609253338723560
