Banco Santander S.A. (SAN) is a well-known worldwide bank and built its operations since 1857. The Madrid-based company now has a network of branches worldwide, offering it multiple opportunities. While banks are often seen as a solid and somewhat sure investment for a portfolio, dividend-oriented investors really should look twice before going all-in. Pre-2015 figures were certainly more encouraging; since then, volatility seems to have taken over. The company does have some tricks up its sleeves, with its most recent attempt to build a whole new digitalized platform to scoop a wider customer base, growth