https://mathweb.ru/allsystem.html?id=304547

Умножить 2C3D.3D70A3D702A4000000000000(16) на 955.333333333333(16) = 19CE057.6872AFD9CF555A1CAC0832AC000000000000000000000000 Столбиком

Введите два числа и укажите их основание системы счиления:
x2C3D.3D70A3D702A4000000000000
955.333333333333000000000000
+0000000000000000000000000000
0000000000000000000000000000
0000000000000000000000000000
0000000000000000000000000000
0000000000000000000000000000
0000000000000000000000000000
0000000000000000000000000000
0000000000000000000000000000
0000000000000000000000000000
0000000000000000000000000000
0000000000000000000000000000
0000000000000000000000000000
84B7B851EB8507EC000000000000
84B7B851EB8507EC000000000000
84B7B851EB8507EC000000000000
84B7B851EB8507EC000000000000
84B7B851EB8507EC000000000000
84B7B851EB8507EC000000000000
84B7B851EB8507EC000000000000
84B7B851EB8507EC000000000000
84B7B851EB8507EC000000000000
84B7B851EB8507EC000000000000
84B7B851EB8507EC000000000000
84B7B851EB8507EC000000000000
DD32333333330D34000000000000
DD32333333330D34000000000000
18E2728F5C28F17C4000000000000
19CE057.6872AFD9CF555A1CAC0832AC000000000000000000000000
Ответ: 2C3D.3D70A3D702A400000000000016 * 955.33333333333316 = 19CE057.6872AFD9CF555A1CAC0832AC00000000000000000000000016