Something Does Not Add Up

After that, Aaron raised his hands toward the people and blessed them.  Then, after presenting the sin offering, the burnt offering, and the peace offering, he stepped down from the altar.  Then Moses and Aaron went into the Tabernacle, and when they came back out, they blessed the people again, and the glory of the Lord appeared to the whole community.  Fire blazed forth from the Lord’s presence and consumed the burnt offering and the fat on the altar.  When the people saw this, they shouted with joy and fell face down on the ground. [Leviticus 9.22-24]

Something does not add up here.

The passage above indicates that the LORD sent fire to consume the burnt offering and the fat on the altar.  I spent a good while going back and looking at the prescribed procedures for the offerings mentioned in today's reading (beginning at Leviticus 1).  All those prescribed procedures included building a fire and burning that offering and the fat.  So, exactly what was it that the fire from the LORD burned up?  The text says it was the burnt offering and the fat, but proper procedure for that offering would have required that it was burned up already.

I realize that good folks translated the Hebrew texts into the various languages and translations we have today, but was continuity considered in the translation?

It would help greatly if all the detail and instruction for each type of sacrifice were discussed in one place.  However, that is not the case as some discussion of the burnt offering is found in Leviticus 1 with a continuation of that discussion later in Leviticus 6.  Why is that?

Father, it helps greatly to read the Bible in a chronological arrangement (as with the One Year Chronological Bible), but even then, as seen today, details are still scattered all over the place.  Please help me to make some sense of it all.