I understand the point regarding God's accuracy. Maybe this will help.
At 2 Samuel 24:9 the figures are 800,000 Israelites and 500,000 Judeans, whereas 1 Chronicles 21:5 numbers Israel’s fighting men at 1,100,000 and Judah’s at 470,000. Enlisted regularly in the royal service were 288,000 troops, divided into 12 groups of 24,000, each group serving one month during the year.
There were an additional 12,000 attendant on the 12 princes of the tribes, making a total of 300,000. Apparently the 1,100,000 of 1 Chronicles 21:5 includes this 300,000 already enlisted, whereas 2 Samuel 24:9 does not. (Numbers 1:16; Deuteronomy 1:15; 1 Chronicles 27:1-22) As regards Judah, 2 Samuel 24:9 apparently included 30,000 men in an army of observation stationed on the Philistine frontiers but which were not included in the figure at 1 Chronicles 21:5. (2 Samuel 6:1) If we remember that 2 Samuel and 1 Chronicles were written by two men with different views and objectives, we can easily harmonize the figures.
I can't see how a reasonable person would take this as a contradiction. Can't God choose not to be detailed? Really, it's stretching this particular incident in my opinion. Still, without detail, the Bible in this case is accurate.
GC