No.
804 - 186 = 618
If that's 6/18, try 1/3 and 2/6
3n = 618 n = 618 ÷ 3 n = 206
It is: 618 = DCXVIII
4x-618 = -614
206
0.0065
618 = 1,854/3
6.18 = 618/100 = 309/50 6.18 = 618/100 = 309/50 6.18 = 618/100 = 309/50 6.18 = 618/100 = 309/50
6 divided 618 = 0.009708737864077669
453 - 618 in regrouping = -165