Let's divide 51288543 by 858
We're looking to find how many times 858 goes into 51288543.

Moving on to step 1:
858 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 858

Advancing to step 2:
The number 858 fits into 51 0 times, leaving a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Append the next digit (2) from the dividend to 51 and continue with: 512 / 858

Going ahead to step 3:
When dividing 512 by 858, we get 0 with a remainder of 512.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 512 leaves us with 512.
Include the next digit (8) from the dividend after 512, then repeat: 5128 / 858

Moving on to step 4:
If we divide 5128 by 858, we get 5 and a remainder of 838.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we subtract 4290 from 5128, we get 838.
Bring next digit (8) of the dividend behind the 838 and repeat the process: 8388 / 858

Moving on to step 5:
858 can be fit into 8388 9 times, resulting in a remainder of 666.
Use 9 as the next digit of our solution. 
Result so far: 59.0
If we subtract 7722 from 8388, we get 666.
Grab the next digit (5) from the dividend, add it to 666, then carry on: 6665 / 858

Let's proceed to step 6:
858 can be fit into 6665 7 times, resulting in a remainder of 659.
The number 7 becomes the next digit in our result. 
Result so far: 597.0
Subtract 6006 from 6665 to get 659.
Include the next digit (4) from the dividend after 659, then repeat: 6594 / 858

Going ahead to step 7:
858 goes into 6594 7 times with a remainder of 588.
Put 7 as the next digit of the answer. 
Result so far: 5977.0
Subtract 6006 from 6594 to get 588.
Take the next digit (3) from the dividend and append it to 588, then repeat: 5883 / 858

On to step 8:
5883 divided by 858 is 6 with a remainder of 735.
The next digit of our result is 6. 
Result so far: 59776.0
The remainder is 735 after subtracting 5148 from 5883.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7350, and continue the process.

Let's proceed to step 9:
858 goes into 7350 8 times with a remainder of 486.
Record the quotient 8 as the next digit in the result. 
Result so far: 59776.8
If we take 6864 away from 7350, we end up with 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Going ahead to step 10:
The number 858 fits into 4860 5 times, leaving a remainder of 570.
Use 5 as the next digit of our solution. 
Result so far: 59776.85
Subtract 4290 from 4860 to get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Step 11:
858 goes into 5700 6 times with a remainder of 552.
Put 6 as the next digit of the answer. 
Result so far: 59776.856
Subtracting 5148 from 5700 leaves us with 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Let's proceed to step 12:
The number 858 fits into 5520 6 times, leaving a remainder of 372.
Record the quotient 6 as the next digit in the result. 
Result so far: 59776.8566
If we take 5148 away from 5520, we end up with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

In conclusion, the division gives 59776.8566 with a balance of 0.00372.