You are correct. If you would put it in decimal form, 84 divided by 9 = 9.3333333333333333 (with the 3s repeating)
the Remainder is divided by the outside number to form another decimal, which is added onto the end of the answer.
You can't divide something as a remainder, you must forst put it into decimal form. You can do this by dividing two by whatever the number you divided by in the equation that resulted in the answer '19 remainder 2.'
You do not invert it. However, you can convert the remainder to a decimal by carrying out a long division of the remainder divided by the original divisor. For example, 13/3 = 4r1 Then, long division of the remainder (=1) by the divisor (=3) gives 0.33.... which is the converted remainder. The full quotient, in decimal form is 4.33...
Four divided by 100 in decimal form = .04
Four divided by fifty would be .08.