2.5 divided by 0.001 equals 2500 because dividing a decimal number by a decimal number is the same as multiplying the first number by the reciprocal of the second number. In this case, the reciprocal of 0.001 is 1000, so 2.5 multiplied by 1000 equals 2500.
1
25
25
0.3125
225 divided your 25 = 9
25 divided by 2 is 12.5
30 * 0001 = 30
25
24.4
25
540
0.0054