Alright, let's work through 82911374 times 54535107 step by step
82911374 × 54535107 = 54535107 × (82911374)
+ 54535107 × 4 that results in 218140428
+ 54535107 × 70 what gives us 3817457490
+ 54535107 × 300 giving us 16360532100
+ 54535107 × 1000 that results in 54535107000
+ 54535107 × 10000 what gives us 545351070000
+ 54535107 × 900000 what gives us 49081596300000
+ 54535107 × 2000000 that equals 109070214000000
+ 54535107 × 80000000 which equals 4362808560000000

= 4521580652607018
