The calculation is as follows:
234222 - 86673 * 546 : 34 + 57
= 234222 - 4727938 : 34 + 57
= 234222 - 139053 : 57
= 95169 : 57
= 1670.26315789

Therefore, 234222 - 86673 * 546 : 34 + 57 = 1670.26315789