Round this number 5,370,288 to the nearest 100,000

Check what number is in that place and check to the one to the right to see if it greater than five, if so round up 1
Like in this case, 3 in 5370288 is in the 100000 place, the one next to it is a seven which is greater than five so you add 1+3 to get four and replace the three with a four and make all the numbers next to it in the right a 0 aka 5400000