Theory:

Division:
 
Let's learn, how to deal with the division of more than \(2\) numbers, \(a,b,c\) are three numbers, \((a/b)/c\) should be evaluated as \(a/(b×c)\).
Example:
1.1/23=12×3=162.2/65=25×6=230
Let \(a,b,c,d\) are four numbers, and (\(a/b\))\(/\)(\(c/d\)) should be evaluated as \((a×d)/(b×c)\)
Example:
1.5/23/6=5×63×2=3062.2/65/2=2×25×6=4303.2/46/2=2×26×4=424
Similar to multiplication, when more than \(2\) numbers are involved, depending upon the number of negative numbers involved, the sign of the answer varies.
Number of negative integers in division
Sign of the result 
Even
\((+)\)
Odd
\(( - )\)
 
Example:
1.5/22/8=5×82×2=4042.8/62/4=8×46×2=3212=32123.9/11/6=9×61×1=541=5414.1/21/2=1×21×2=22=15.122=12×2=14