(1) What is the physical meaning of the formula g = mg? (2) what is the physical meaning of the formula g = g / M = 9.8n/kg?

(1) What is the physical meaning of the formula g = mg? (2) what is the physical meaning of the formula g = g / M = 9.8n/kg?

(1) (2) the ratio of the weight of an object to its mass