No problem, we've got 72478200 and 87863241 to multiply
72478200 × 87863241 = 87863241 × (72478200)
+ 87863241 × 0 that results in 0
+ 87863241 × 00 yielding 0
+ 87863241 × 200 giving us 17572648200
+ 87863241 × 8000 which equals 702905928000
+ 87863241 × 70000 producing 6150426870000
+ 87863241 × 400000 giving us 35145296400000
+ 87863241 × 2000000 that results in 175726482000000
+ 87863241 × 70000000 which equals 6150426870000000

= 6368169553846200
