L | Tth | Th | H | T | U |

4 | 5 | 6 | 0 | 9 | 8 |

$4$ at lakhs place, so we read it four lakhs

$5$ at ten thousand's place and $6$ at thousand's place, so read it fifty six thousand

$0$ at hundred, so hundred term will not be included

$9$ at ten's and $8$ at unit's place, so read it ninety eight

Together we get,

$4,56,092=$ Four lakh fifty six thousand ninety eight.