This page shows the steps for the solution of long division problems:

It computes all the digits in the solution until it terminates or it repeats. The divisor and dividend input are adjusted as in the standard long division algorithm. The decimal points are shifted to make the divisor a whole number. Insignificant leading and trailing zeros are removed.

Note: the number of repeating digits can easily become quite large. E.g. try dividing one by a prime number such as 19, 233 or 1777.