52851052 divided by 870 
We're looking to find how many times 870 goes into 52851052.

Step 1:
If we divide 5 by 870, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 870

Advancing to step 2:
52 divided by 870 is 0 with a remainder of 52.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 52, we end up with 52.
Append the next digit (8) from the dividend to 52 and continue with: 528 / 870

Step 3:
The number 870 fits into 528 0 times, leaving a remainder of 528.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 528 to get 528.
Bring next digit (5) of the dividend behind the 528 and repeat the process: 5285 / 870

Let's proceed to step 4:
5285 divided by 870 is 6 with a remainder of 65.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we take 5220 away from 5285, we end up with 65.
Include the next digit (1) from the dividend after 65, then repeat: 651 / 870

Let's proceed to step 5:
651 divided by 870 is 0 with a remainder of 651.
The number 0 becomes the next digit in our result. 
Result so far: 60.0
If we take 0 away from 651, we end up with 651.
Fetch the next digit (0) from the dividend, attach it to 651 and continue: 6510 / 870

Going ahead to step 6:
870 goes into 6510 7 times with a remainder of 420.
Write down 7 as next digit of the result. 
Result so far: 607.0
The remainder is 420 after subtracting 6090 from 6510.
Fetch the next digit (5) from the dividend, attach it to 420 and continue: 4205 / 870

Going ahead to step 7:
4205 divided by 870 is 4 with a remainder of 725.
Record the quotient 4 as the next digit in the result. 
Result so far: 6074.0
The remainder is 725 after subtracting 3480 from 4205.
Fetch the next digit (2) from the dividend, attach it to 725 and continue: 7252 / 870

Let's proceed to step 8:
870 goes into 7252 8 times with a remainder of 292.
Write down 8 as next digit of the result. 
Result so far: 60748.0
Subtracting 6960 from 7252 leaves us with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Let's proceed to step 9:
The number 870 fits into 2920 3 times, leaving a remainder of 310.
Put 3 as the next digit of the answer. 
Result so far: 60748.3
Deduct 2610 from 2920 and we're left with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Moving on to step 10:
870 can be fit into 3100 3 times, resulting in a remainder of 490.
Use 3 as the next digit of our solution. 
Result so far: 60748.33
Subtract 2610 from 3100 to get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

The final outcome is 60748.33, with a leftover of 0.49.