Please show all steps so I can fully understand how to solve. Thank you

Blue Sky Ltd, has an old machine, which is depreciated using the straight-line method. At the beginning of 20x12, data relating to this old machine is as follows: Machine cost $518298 Accumulated depreciation - machine 134469 Estimated residual value at end of useful 93260 life Estimated remaining useful life What is the depreciation expense relating to this machine for the year 20x122 Select one: a. $41510 b. $54833 c. $60720 d. $74043