56874 ÷ 3 = 18958 R0
Alright, let's work through the division of 56874 by 3 step by step.

Step 1:
3 goes into 5 1 times with a remainder of 2.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 3 from 5 to get 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 3

Step 2:
3 goes into 26 8 times with a remainder of 2.
Write down 8 as next digit of of the result. 
Result so far: 18
Subtract 24 from 26 to get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 3

Step 3:
3 goes into 28 9 times with a remainder of 1.
Write down 9 as next digit of of the result. 
Result so far: 189
Subtract 27 from 28 to get 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 3

Step 4:
3 goes into 17 5 times with a remainder of 2.
Write down 5 as next digit of of the result. 
Result so far: 1895
Subtract 15 from 17 to get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 3

Step 5:
3 goes into 24 8 times with a remainder of 0.
Write down 8 as next digit of of the result. 
Result so far: 18958
Subtract 24 from 24 to get 0.

The final result is 18958 with a remainder of 0.