Which calculator would do what you described? I just checked a few ones
and didn't find any. I'd be surprised a lot, to be honest, because
that'd be wrong and I probably would've gotten a very wrong result at
some point because I rely on calculators having implemented the correct
order of operations. Every school or university teaches that
multiplication and division have the same precedence (modulo may or may
not be on the same level, mostly depending on the notation) and are
calculated from the left to the right. So 8*10^12/6*10^9 =
8*(10^12)/6*(10^9) = ((8*(10^12))/6)*(10^9)

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https://bugs.launchpad.net/bugs/1210607

Title:
  Scientific Notation not given proper order of operations

Status in GNOME Calculator:
  Confirmed
Status in gnome-calculator package in Ubuntu:
  Triaged

Bug description:
  gnome-calculator 3.8.1 (3.8.1-0ubuntu1) on Ubuntu 13.04 x86_64:

  In Advanced mode, enter:

   8×10¹²÷6×10⁹

  (keystrokes: [8] [×10^y]  [1] [2] [/] [6] [×10^y] [9])

  Result:

   1.333333333×10²¹

  Correct answer:

   1333.33333333333

  (so gnome-calculator is off by 18 orders of magnitude. The ‘×10^y’
  steps should be carried out first, according to operator precedence
  for exponentiation.)

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: gnome-calculator 1:3.8.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.8.0-28.41-generic 3.8.13.5
  Uname: Linux 3.8.0-28-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  Date: Fri Aug  9 13:07:33 2013
  ExecutablePath: /usr/bin/gnome-calculator
  InstallationDate: Installed on 2013-04-13 (117 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MarkForUpload: True
  SourcePackage: gnome-calculator
  UpgradeStatus: Upgraded to raring on 2013-04-26 (105 days ago)

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