How many Hafnium-176 atoms are produced in alpha decay reaction of tungsten-180?

Tungsten-180 (W-180) is an alpha decay isotopes with half life 41 quintillion years (I am using short scale), initial I have a mole of Tungsten-180 (100% pure). How many Hafnium-176 atoms are produced in this reaction (ume Hafnium-176 is not decay further) in period 80.65 years (equal averaging Life expectancy at birth of canadians born in 2008)