Divorce is becoming increasingly common in modern times.

Literal

Divorce [topic-は] modern-times [in-では] increasingly commonplace becoming-going.

ありふれたもの (something commonplace/ordinary) uses ありふれた (common/unremarkable). ますます (increasingly) marks a growing trend. ~なりつつある (is in the process of becoming) uses ~つつある for a change in progress — more formal than ~なっている.