My car is business & personal but was totaled in an accident. Received $ from insurance. Put a part of Ins.$ on financing a new car. Do I use the tradein?

I am confused on what to use since I didn't actually trade it in.  It was no longer usable due to an accident.   I was able to get a loan on another vehicle and used some of the insurance $ as a down payment.  All this happened within about a 2 week time period.