Help Programming: Expanded notations/ Long method?

guyss help please how do you do this?? can you guys explain it to me with solutions;-;

1. 143(base10)= ___(base2)

2.1111011(base10)=___(base2)

3.044(base10)=__(base2)

4.1111011(base2)=____(base10)

its okay if you guys dont answer all of them, just explain it to me;-;
1 answer 1