How one can know God through Karmayoga?

Karmayoga is a yoga through which one can attain God by just devoting all his/her daily actions to Him.

Below is a Text from Bhagavad Gita-Chapter Two 

TEXT 47

karmany evadhikaras te 
ma phalesu kadacana 
ma karma-phala-hetur bhur 
ma te sango 'stv akarmani


SYNONYMS

karmani--prescribed duties; eva--certainly; adhikarah--right; te--of you; ma--never; phalesu--in the fruits; kadacana--at any time; ma--never; karma-phala--in the result of the work; hetuh--cause; bhuh--become; ma--never; te--of you; sangah--attachment; astu--be there;akarmani--in not doing.

TRANSLATION

You have a right to perform your prescribed duty, but you are not entitled to the fruits of action. Never consider yourself to be the cause of the results of your activities, and never be attached to not doing your duty.

By working for God, we will attain peace & will attain His love & devotion.
So let's all work for Krishna only.