Alright, let's work through 48891403 times 86038128 step by step
48891403 × 86038128 = 86038128 × (48891403)
+ 86038128 × 3 that is equal 258114384
+ 86038128 × 00 producing 0
+ 86038128 × 400 yielding 34415251200
+ 86038128 × 1000 giving us 86038128000
+ 86038128 × 90000 producing 7743431520000
+ 86038128 × 800000 which equals 68830502400000
+ 86038128 × 8000000 what gives us 688305024000000
+ 86038128 × 40000000 what gives us 3441525120000000

= 4206524789413584
