We look at the division of 870297 by 48 
We're looking to find how many times 48 goes into 870297.

Step 1:
48 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 48

Moving on to step 2:
If we divide 87 by 48, we get 1 and a remainder of 39.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 48 from 87 leaves us with 39.
Fetch the next digit (0) from the dividend, attach it to 39 and continue: 390 / 48

Moving on to step 3:
The number 48 fits into 390 8 times, leaving a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
Deduct 384 from 390 and we're left with 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 48

Moving on to step 4:
48 can be fit into 62 1 times, resulting in a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 181.0
If we take 48 away from 62, we end up with 14.
Include the next digit (9) from the dividend after 14, then repeat: 149 / 48

On to step 5:
If we divide 149 by 48, we get 3 and a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 1813.0
If we subtract 144 from 149, we get 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 48

Going ahead to step 6:
48 goes into 57 1 times with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 18131.0
The remainder is 9 after subtracting 48 from 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
When dividing 90 by 48, we get 1 with a remainder of 42.
Use 1 as the next digit of our solution. 
Result so far: 18131.1
Subtract 48 from 90 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 8:
The number 48 fits into 420 8 times, leaving a remainder of 36.
Record the quotient 8 as the next digit in the result. 
Result so far: 18131.18
If we subtract 384 from 420, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 9:
The number 48 fits into 360 7 times, leaving a remainder of 24.
Write down 7 as next digit of the result. 
Result so far: 18131.187
If we take 336 away from 360, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
When dividing 240 by 48, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 18131.1875
Subtract 240 from 240 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
The number 48 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 18131.1875
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 12:
48 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 18131.1875
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 18131.1875, and the remainder is 0.0.