Alright, let's work through 87281900 times 72440845 step by step
87281900 × 72440845 = 72440845 × (87281900)
+ 72440845 × 0 that results in 0
+ 72440845 × 00 resulting in 0
+ 72440845 × 900 giving us 65196760500
+ 72440845 × 1000 that equals 72440845000
+ 72440845 × 80000 producing 5795267600000
+ 72440845 × 200000 producing 14488169000000
+ 72440845 × 7000000 that equals 507085915000000
+ 72440845 × 80000000 which equals 5795267600000000

= 6322774589205500
