Do you DCA with larger sums?

Hi all,

This is an alt account - but have been a member and learned immensely from the community here.

Context:

I get dividends from private businesses at different intervals. There are 3 of them, and depending on how much cash is required for growth in a particular period each of them will pay out a dividend at different times of the year (different financial years for each). They typically pay out annually.

In the past this money was almost entirely used towards other private businesses (that is how there are now 3).

I now want to allocate a lot more, if not all of it, in index funds to build towards an early retirement.

For those that either get large bonuses or have had exits, do you slowly dollar cost average into the etfs over a few weeks or even months (I presume for the larger exits)? Or is it much more aggressive?