2. Multiply each bit by its corresponding power of 2 and add all the terms up.
110 0100 1100 1001 1001 1001 0010 1110 1110 1100 0000 0000 1110 1110 0100 1011(2) =
(1 × 262 + 1 × 261 + 0 × 260 + 0 × 259 + 1 × 258 + 0 × 257 + 0 × 256 + 1 × 255 + 1 × 254 + 0 × 253 + 0 × 252 + 1 × 251 + 0 × 250 + 0 × 249 + 1 × 248 + 1 × 247 + 0 × 246 + 0 × 245 + 1 × 244 + 1 × 243 + 0 × 242 + 0 × 241 + 1 × 240 + 0 × 239 + 0 × 238 + 1 × 237 + 0 × 236 + 1 × 235 + 1 × 234 + 1 × 233 + 0 × 232 + 1 × 231 + 1 × 230 + 1 × 229 + 0 × 228 + 1 × 227 + 1 × 226 + 0 × 225 + 0 × 224 + 0 × 223 + 0 × 222 + 0 × 221 + 0 × 220 + 0 × 219 + 0 × 218 + 0 × 217 + 0 × 216 + 1 × 215 + 1 × 214 + 1 × 213 + 0 × 212 + 1 × 211 + 1 × 210 + 1 × 29 + 0 × 28 + 0 × 27 + 1 × 26 + 0 × 25 + 0 × 24 + 1 × 23 + 0 × 22 + 1 × 21 + 1 × 20)(10) =
(4 611 686 018 427 387 904 + 2 305 843 009 213 693 952 + 0 + 0 + 288 230 376 151 711 744 + 0 + 0 + 36 028 797 018 963 968 + 18 014 398 509 481 984 + 0 + 0 + 2 251 799 813 685 248 + 0 + 0 + 281 474 976 710 656 + 140 737 488 355 328 + 0 + 0 + 17 592 186 044 416 + 8 796 093 022 208 + 0 + 0 + 1 099 511 627 776 + 0 + 0 + 137 438 953 472 + 0 + 34 359 738 368 + 17 179 869 184 + 8 589 934 592 + 0 + 2 147 483 648 + 1 073 741 824 + 536 870 912 + 0 + 134 217 728 + 67 108 864 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 32 768 + 16 384 + 8 192 + 0 + 2 048 + 1 024 + 512 + 0 + 0 + 64 + 0 + 0 + 8 + 0 + 2 + 1)(10) =
(4 611 686 018 427 387 904 + 2 305 843 009 213 693 952 + 288 230 376 151 711 744 + 36 028 797 018 963 968 + 18 014 398 509 481 984 + 2 251 799 813 685 248 + 281 474 976 710 656 + 140 737 488 355 328 + 17 592 186 044 416 + 8 796 093 022 208 + 1 099 511 627 776 + 137 438 953 472 + 34 359 738 368 + 17 179 869 184 + 8 589 934 592 + 2 147 483 648 + 1 073 741 824 + 536 870 912 + 134 217 728 + 67 108 864 + 32 768 + 16 384 + 8 192 + 2 048 + 1 024 + 512 + 64 + 8 + 2 + 1)(10) =
7 262 504 300 918 664 779(10)
The number 110 0100 1100 1001 1001 1001 0010 1110 1110 1100 0000 0000 1110 1110 0100 1011(2) converted from an unsigned binary (in base 2) and written as a positive integer (with no sign) in decimal system (in base ten):
110 0100 1100 1001 1001 1001 0010 1110 1110 1100 0000 0000 1110 1110 0100 1011(2) = 7 262 504 300 918 664 779(10)
Spaces were used to group digits: for binary, by 4, for decimal, by 3.