51629 ÷ 2 = 25814 R1
We're going to perform division on 51629 with 2 as the divisor.

Step 1:
2 goes into 5 2 times with a remainder of 1.
Write down 2 as next digit of of the result. 
Result so far: 2
Subtract 4 from 5 to get 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 2

Step 2:
2 goes into 11 5 times with a remainder of 1.
Write down 5 as next digit of of the result. 
Result so far: 25
Subtract 10 from 11 to get 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 2

Step 3:
2 goes into 16 8 times with a remainder of 0.
Write down 8 as next digit of of the result. 
Result so far: 258
Subtract 16 from 16 to get 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 2

Step 4:
2 goes into 2 1 times with a remainder of 0.
Write down 1 as next digit of of the result. 
Result so far: 2581
Subtract 2 from 2 to get 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 2

Step 5:
2 goes into 9 4 times with a remainder of 1.
Write down 4 as next digit of of the result. 
Result so far: 25814
Subtract 8 from 9 to get 1.

The final result is 25814 with a remainder of 1.