Los Blancos, who scored through Cristiano Ronaldo, have now become the joint-most successful team in the history of the competition alongside El Clasico rivals Barcelona.
Read how it all unfolded in Sports Mole's minute-by-minute live commentary of the action below.
REAL: Navas; Carvajal, Ramos, Varane, Marcelo; Casemiro, Modric, Kroos; Isco, Benzema, Ronaldo
GREMIO: Grohe; Edilson, Geromel, Kannemann, Cortez; Michel, Jailson, Ramiro, Luan, Fernandinho; Barrios
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