46859 ÷ 8 = 5857 R3
Let's divide 46859 by 8.

Step 1:
8 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 4 to get 4.
Bring next digit (6) of the dividend behind the 4 and repeat the process: 46 / 8

Step 2:
8 goes into 46 5 times with a remainder of 6.
Write down 5 as next digit of of the result. 
Result so far: 5
Subtract 40 from 46 to get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 8

Step 3:
8 goes into 68 8 times with a remainder of 4.
Write down 8 as next digit of of the result. 
Result so far: 58
Subtract 64 from 68 to get 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 8

Step 4:
8 goes into 45 5 times with a remainder of 5.
Write down 5 as next digit of of the result. 
Result so far: 585
Subtract 40 from 45 to get 5.
Bring next digit (9) of the dividend behind the 5 and repeat the process: 59 / 8

Step 5:
8 goes into 59 7 times with a remainder of 3.
Write down 7 as next digit of of the result. 
Result so far: 5857
Subtract 56 from 59 to get 3.

The final result is 5857 with a remainder of 3.