Here we go:
234.567
Duzentos (Two hundred) e trinta e quatro (thirty-four) mil (thousand), quinhentos (five hundred) e sessenta e sete (sixty-seven).
Two hundred and thirty-four thousand, five hundred and sixty-seven.
Duzentos e trinta e quatro mil, quinhentos e sessenta e sete.
The only difference is that in Portuguese we don't use traces to link numbers to each other (like "sixty-seven), but the word "E" ("and").
Hope this helps. =]