If a computer is capable only of manipulating and storing integers, what di themselves? How are these difficulties overcome

The difficulties present in the computer when they are capable of manipulating and storing the integers and difficulties themselves are as follow:

Computer need to perform all the integer calculation for represent the electrionic circuit in the various application and integer basically include the zero, positive and negative number. Integers are define as infinite and the integers are used in electronic circuits then, the time require for process the circuit is undefine. In computer, integer are used for calculating and also used as storage space. It also increase the overall cost and complexity of the circuits.