Let's divide 54875289 by 870
Our goal is to divide 54875289 by 870.

Advancing to step 1:
When dividing 5 by 870, we get 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 870

Moving on to step 2:
870 goes into 54 0 times with a remainder of 54.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 54 and we're left with 54.
Grab the next digit (8) from the dividend, add it to 54, then carry on: 548 / 870

Advancing to step 3:
If we divide 548 by 870, we get 0 and a remainder of 548.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 548 to get 548.
Bring next digit (7) of the dividend behind the 548 and repeat the process: 5487 / 870

Let's proceed to step 4:
The number 870 fits into 5487 6 times, leaving a remainder of 267.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 5220 from 5487 to get 267.
Bring next digit (5) of the dividend behind the 267 and repeat the process: 2675 / 870

On to step 5:
870 goes into 2675 3 times with a remainder of 65.
The number 3 becomes the next digit in our result. 
Result so far: 63.0
The remainder is 65 after subtracting 2610 from 2675.
Grab the next digit (2) from the dividend, add it to 65, then carry on: 652 / 870

Moving on to step 6:
652 divided by 870 is 0 with a remainder of 652.
The next digit of our result is 0. 
Result so far: 630.0
If we subtract 0 from 652, we get 652.
Bring next digit (8) of the dividend behind the 652 and repeat the process: 6528 / 870

Advancing to step 7:
870 goes into 6528 7 times with a remainder of 438.
The next digit of our result is 7. 
Result so far: 6307.0
Deduct 6090 from 6528 and we're left with 438.
Include the next digit (9) from the dividend after 438, then repeat: 4389 / 870

On to step 8:
When dividing 4389 by 870, we get 5 with a remainder of 39.
The number 5 becomes the next digit in our result. 
Result so far: 63075.0
If we subtract 4350 from 4389, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 9:
If we divide 390 by 870, we get 0 and a remainder of 390.
Write down 0 as next digit of the result. 
Result so far: 63075.0
Subtracting 0 from 390 leaves us with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Moving on to step 10:
870 goes into 3900 4 times with a remainder of 420.
Put 4 as the next digit of the answer. 
Result so far: 63075.04
Deduct 3480 from 3900 and we're left with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Advancing to step 11:
4200 divided by 870 is 4 with a remainder of 720.
The next digit of our result is 4. 
Result so far: 63075.044
The remainder is 720 after subtracting 3480 from 4200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

The final outcome is 63075.044, with a leftover of 0.072.