51715814 divided by 860 
We want to figure out the number of times 51715814 can be divided by 860.

Let's proceed to step 1:
860 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 860

Let's proceed to step 2:
When dividing 51 by 860, we get 0 with a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Take the next digit (7) from the dividend and append it to 51, then repeat: 517 / 860

Going ahead to step 3:
860 goes into 517 0 times with a remainder of 517.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 517 leaves us with 517.
Include the next digit (1) from the dividend after 517, then repeat: 5171 / 860

Moving on to step 4:
If we divide 5171 by 860, we get 6 and a remainder of 11.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 5160 from 5171, we get 11.
Fetch the next digit (5) from the dividend, attach it to 11 and continue: 115 / 860

Going ahead to step 5:
860 goes into 115 0 times with a remainder of 115.
Write down 0 as next digit of the result. 
Result so far: 60.0
If we subtract 0 from 115, we get 115.
Grab the next digit (8) from the dividend, add it to 115, then carry on: 1158 / 860

On to step 6:
860 goes into 1158 1 times with a remainder of 298.
Record the quotient 1 as the next digit in the result. 
Result so far: 601.0
Subtract 860 from 1158 to get 298.
Bring next digit (1) of the dividend behind the 298 and repeat the process: 2981 / 860

On to step 7:
When dividing 2981 by 860, we get 3 with a remainder of 401.
The next digit of our result is 3. 
Result so far: 6013.0
If we subtract 2580 from 2981, we get 401.
Take the next digit (4) from the dividend and append it to 401, then repeat: 4014 / 860

On to step 8:
When dividing 4014 by 860, we get 4 with a remainder of 574.
Put 4 as the next digit of the answer. 
Result so far: 60134.0
Subtracting 3440 from 4014 leaves us with 574.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Step 9:
5740 divided by 860 is 6 with a remainder of 580.
Write down 6 as next digit of the result. 
Result so far: 60134.6
If we take 5160 away from 5740, we end up with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

On to step 10:
The number 860 fits into 5800 6 times, leaving a remainder of 640.
The number 6 becomes the next digit in our result. 
Result so far: 60134.66
If we take 5160 away from 5800, we end up with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

The quotient of the division is 60134.66, and the remainder is 0.64.