Travelling at speed of light

import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.Scanner;

public class TravellingAtLightSpeed {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
        BigDecimal lightYears = BigDecimal.valueOf(Double.parseDouble(console.nextLine()));
        BigDecimal kmPerLightYear = BigDecimal.valueOf(9450000000000.0);
        BigDecimal distanceInKm = BigDecimal.ZERO;
        distanceInKm = lightYears.multiply(kmPerLightYear);
        BigDecimal speed = BigDecimal.valueOf(300000.0);
        BigDecimal totalSeconds = distanceInKm.divide(speed, 100, RoundingMode.HALF_EVEN);
        BigDecimal totalWeeks = totalSeconds.divide(new BigDecimal("604800"), 0, RoundingMode.FLOOR);
        totalSeconds = totalSeconds.subtract(totalWeeks.multiply(new BigDecimal("604800")));
        BigDecimal totalDays = totalSeconds.divide(new BigDecimal("86400"), 0, RoundingMode.FLOOR);
        totalSeconds = totalSeconds.subtract(totalDays.multiply(new BigDecimal("86400")));
        BigDecimal totalHours = totalSeconds.divide(new BigDecimal("3600"), 0, RoundingMode.FLOOR);
        totalSeconds = totalSeconds.subtract(totalHours.multiply(new BigDecimal("3600")));
        BigDecimal totalMinutes = totalSeconds.divide(new BigDecimal("60"), 0, RoundingMode.FLOOR);
        totalSeconds = totalSeconds.subtract(totalMinutes.multiply(new BigDecimal("60")));
        totalSeconds = totalSeconds.setScale(0, RoundingMode.HALF_EVEN);
        System.out.println(totalWeeks + " weeks");
        System.out.println(totalDays + " days");
        System.out.println(totalHours + " hours");
        System.out.println(totalMinutes + " minutes");
        System.out.println(totalSeconds + " seconds");
    }
}