$807006+\left(592647-398779\right)=807006+193868=1000874$  

 

$5734+\underset{4416}{\underbrace{48\cdot 92}}+\underset{169}{\underbrace{2197:13}}-685=5734+4416+169-685=9634$  

 

$1234+\left(96125-82215\right)\cdot 86=1234+13910\cdot 86=1234+1196260=1197494$  

 

$111111:3367+222222:3367+333333:3367=33+66+99=198$