+// math.asm: WORD p_div,'/',fasm
+
+anchor:p_div[]
+
+=== Word: /
+
+....
+Data stack: ( v1 v2 -- q )
+....
+
+"/" (div) is a function word that replaces a pair of values with the
+results of signed integer division of the first, v1, divided by the
+second, v2. To that end, the values are 64-bit signed integers. The
+result is the integer quotient, q, and the discarded remainder, r,
+where q and r are the respectively largest and smallest integers to
+satisfy the formula:
+....
+ v1 = q * v2 + r
+....