In which episode, the foreign daughter-in-law Miaochan in Su Lang got divorced?

It's episode 3592: Blessing from Heaven (Part 2).

After the crew learned that Kang Qizong (Guo Chang) was ill, the plot made Kang Qizong go to Africa, and there were occasional phone calls. This episode confesses that Kang Qizong divorced Su Miaochan. Kang Qizong moved away from home because he was terminally ill and didn't want married with children to leave alone. Su Miaochan burst into tears when she learned the truth.

Extended data:

Related story introduction:

The play describes a big family in the old city of Guangzhou, with four sons and four foreign daughters-in-law. Due to the differences in living habits and cultural backgrounds, a series of comedy stories appeared. These comedy stories all come from life and have distinct characteristics of the times.

In the play, it runs in the extended family, which is not only suitable for expressing stories of all ages. At the same time, due to the multi-line arrangement of character relations, around a group of core figures of the Kang family, more secondary main figures have been extended, from the neighborhood, to relatives and friends from other provinces and even foreign countries, to new immigrants in Guangzhou, and to foreigners who have traveled to Guangzhou.