how much years would it take

// how much years would it take for an iron mine going into a normal furnace to reach 25 quintillion dollars?

/*
FOR THE CONTEST
*/

var val_1sec = 1  // 1 iron ore into a normal furnace per 1 second
var sec = 60      // 1 minute
var min = 60      // 1 hour
var hr  = 24      // 1 day
var d   = 365     // 1 year

var val_1yr = val_1sec*sec*min*hr*d // value after 1 year of waiting
var val_req = 2.5e+19 // 25 quintillion

var result = val_req / val_1yr

alert("Value after 1 year: "+val_1yr+"\nHow much years it would take to get to 25 Qn: "+result+"\n("+val_req+" / "+val_1yr+")")