Alright, let's work through 84607564 times 41040407 step by step
84607564 × 41040407 = 41040407 × (84607564)
+ 41040407 × 4 yielding 164161628
+ 41040407 × 60 what gives us 2462424420
+ 41040407 × 500 that results in 20520203500
+ 41040407 × 7000 which equals 287282849000
+ 41040407 × 00000 resulting in 0
+ 41040407 × 600000 that equals 24624244200000
+ 41040407 × 4000000 what gives us 164161628000000
+ 41040407 × 80000000 producing 3283232560000000

= 3472328861838548
