51887 ÷ 66 
We want to figure out the number of times 51887 can be divided by 66.

On to step 1:
5 divided by 66 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 66

Going ahead to step 2:
When dividing 51 by 66, we get 0 with a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Include the next digit (8) from the dividend after 51, then repeat: 518 / 66

Going ahead to step 3:
66 goes into 518 7 times with a remainder of 56.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we subtract 462 from 518, we get 56.
Take the next digit (8) from the dividend and append it to 56, then repeat: 568 / 66

Let's proceed to step 4:
If we divide 568 by 66, we get 8 and a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 78.0
Subtract 528 from 568 to get 40.
Append the next digit (7) from the dividend to 40 and continue with: 407 / 66

Moving on to step 5:
If we divide 407 by 66, we get 6 and a remainder of 11.
Record the quotient 6 as the next digit in the result. 
Result so far: 786.0
Subtract 396 from 407 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 6:
66 can be fit into 110 1 times, resulting in a remainder of 44.
Put 1 as the next digit of the answer. 
Result so far: 786.1
The remainder is 44 after subtracting 66 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 7:
If we divide 440 by 66, we get 6 and a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 786.16
If we subtract 396 from 440, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 8:
440 divided by 66 is 6 with a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 786.166
If we subtract 396 from 440, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final result is 786.166 with a remainder of 0.0044.