The commissioner shall make a full, true, complete, and accurate examination and investigation of the affairs of each corporation doing business under this chapter as often as the commissioner deems necessary. Such examination may be made without previous notice to the corporation to be examined. Fees for such examinations must be charged by the department of financial institutions at an hourly rate to be set by the commissioner, sufficient to cover all reasonable expenses of the department associated with the examinations provided for by this section. Fees must be paid to the department of financial institutions and deposited in the financial institutions regulatory fund. The commissioner, in the commissioner’s discretion, may accept, in lieu of any examination authorized or required by this title to be conducted by the department of financial institutions, the examination that may have been made of such institution within a reasonable period by the federal reserve bank or federal deposit insurance corporation, if a copy of such examination is furnished to the commissioner. The commissioner shall assume and exercise over each such corporation and its business, officers, directors, and employees all the power and authority conferred upon the commissioner over financial or moneyed corporations or associations.