With the information you provided, you'll need to do that manually.
Manual Entry
$Array = [
//your array
];
$Array[0]->number = 82;
$Array[1]->number = 61;
Automated?
$Array = [
//your array
];
$Numbers = [82, 61];
foreach($Numbers as $key => $number) {
if(isset($Array[$key]) {
$Array[$key]->number = $number;
}
}