Alright, let's work through 87351438 times 47246749 step by step
87351438 × 47246749 = 47246749 × (87351438)
+ 47246749 × 8 what gives us 377973992
+ 47246749 × 30 yielding 1417402470
+ 47246749 × 400 giving us 18898699600
+ 47246749 × 1000 giving us 47246749000
+ 47246749 × 50000 what gives us 2362337450000
+ 47246749 × 300000 that equals 14174024700000
+ 47246749 × 7000000 resulting in 330727243000000
+ 47246749 × 80000000 giving us 3779739920000000

= 4127071465975062
