As previously described, many older processors (and possibly some current ones) do not natively support fractional mathematics. In this case, fractional values can be scaled into integers by multiplying them by ten to the power of whatever decimal precision is desired. In other words, to preserve "n" digits to the right of the decimal point, it is necessary to multiply the entire number by 10"n". In computers, which perform calculations in binary, the real number is multiplied by 2"m" to preserve "m" digits to the right of the binary point; alternatively, one can bit shift the value "m" places to the left. For example, in the following set of real world fractional values, all have three digits to the right of the decimal point: