Alright, let's work through 87208640 times 39480349 step by step
87208640 × 39480349 = 39480349 × (87208640)
+ 39480349 × 0 resulting in 0
+ 39480349 × 40 giving us 1579213960
+ 39480349 × 600 yielding 23688209400
+ 39480349 × 8000 that is equal 315842792000
+ 39480349 × 00000 giving us 0
+ 39480349 × 200000 producing 7896069800000
+ 39480349 × 7000000 resulting in 276362443000000
+ 39480349 × 80000000 which equals 3158427920000000

= 3443027543015360
