Alright, let's work through 66744925 times 87447999 step by step
66744925 × 87447999 = 87447999 × (66744925)
+ 87447999 × 5 that is equal 437239995
+ 87447999 × 20 which equals 1748959980
+ 87447999 × 900 giving us 78703199100
+ 87447999 × 4000 that is equal 349791996000
+ 87447999 × 40000 producing 3497919960000
+ 87447999 × 700000 that is equal 61213599300000
+ 87447999 × 6000000 resulting in 524687994000000
+ 87447999 × 60000000 giving us 5246879940000000

= 5836710134655075
