> db.docs.drop()
> for (var i=0; i<10; i++) { db.docs.insert({number: i}) }
> db.docs.find()
{ "_id" : ObjectId("51834d678d284e5c5e3ea7e3"), "number" : 0 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7e4"), "number" : 1 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7e5"), "number" : 2 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7e6"), "number" : 3 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7e7"), "number" : 4 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7e8"), "number" : 5 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7e9"), "number" : 6 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7ea"), "number" : 7 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7eb"), "number" : 8 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7ec"), "number" : 9 }
> db.docs.count()
10

> db.docs.find().max({number: 4})
{ "_id" : ObjectId("51834d678d284e5c5e3ea7e3"), "number" : 0 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7e4"), "number" : 1 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7e5"), "number" : 2 }
{ "_id" : ObjectId("51834d678d284e5c5e3ea7e6"), "number" : 3 }

> db.docs.find().max({number: 4}).count()
10