Convert from megadalton to quartern-loaf

Unit Definition (megadalton)
The megadalton is a unit of mass equal to one million atomic mass units.

Unit Definition (quartern-loaf)
The quartern-loaf is a traditional English unit of weight for bread. A quartern-loaf is made from a quartern of flour. The finished loaf usually weighs somewhere between 4 and 5 pounds (very roughly 2 kilograms).