10558440 divided by 870 
Let's see how many times 870 fits into 10558440.

Let's proceed to step 1:
If we divide 1 by 870, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 870

Moving on to step 2:
The number 870 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 10, we get 10.
Bring next digit (5) of the dividend behind the 10 and repeat the process: 105 / 870

On to step 3:
When dividing 105 by 870, we get 0 with a remainder of 105.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 105 after subtracting 0 from 105.
Fetch the next digit (5) from the dividend, attach it to 105 and continue: 1055 / 870

On to step 4:
The number 870 fits into 1055 1 times, leaving a remainder of 185.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 870 from 1055 leaves us with 185.
Bring next digit (8) of the dividend behind the 185 and repeat the process: 1858 / 870

Going ahead to step 5:
870 goes into 1858 2 times with a remainder of 118.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 1740 from 1858 to get 118.
Grab the next digit (4) from the dividend, add it to 118, then carry on: 1184 / 870

Moving on to step 6:
1184 divided by 870 is 1 with a remainder of 314.
The next digit of our result is 1. 
Result so far: 121.0
The remainder is 314 after subtracting 870 from 1184.
Include the next digit (4) from the dividend after 314, then repeat: 3144 / 870

Let's proceed to step 7:
When dividing 3144 by 870, we get 3 with a remainder of 534.
Record the quotient 3 as the next digit in the result. 
Result so far: 1213.0
Deduct 2610 from 3144 and we're left with 534.
Append the next digit (0) from the dividend to 534 and continue with: 5340 / 870

Step 8:
If we divide 5340 by 870, we get 6 and a remainder of 120.
The next digit of our result is 6. 
Result so far: 12136.0
Subtracting 5220 from 5340 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 9:
The number 870 fits into 1200 1 times, leaving a remainder of 330.
The next digit of our result is 1. 
Result so far: 12136.1
If we take 870 away from 1200, we end up with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Advancing to step 10:
The number 870 fits into 3300 3 times, leaving a remainder of 690.
Record the quotient 3 as the next digit in the result. 
Result so far: 12136.13
The remainder is 690 after subtracting 2610 from 3300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

Let's proceed to step 11:
If we divide 6900 by 870, we get 7 and a remainder of 810.
Use 7 as the next digit of our solution. 
Result so far: 12136.137
If we take 6090 away from 6900, we end up with 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Moving on to step 12:
8100 divided by 870 is 9 with a remainder of 270.
The number 9 becomes the next digit in our result. 
Result so far: 12136.1379
Deduct 7830 from 8100 and we're left with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 13:
The number 870 fits into 2700 3 times, leaving a remainder of 90.
The next digit of our result is 3. 
Result so far: 12136.13793
Deduct 2610 from 2700 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 14:
900 divided by 870 is 1 with a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 12136.137931
Subtract 870 from 900 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 15:
300 divided by 870 is 0 with a remainder of 300.
The number 0 becomes the next digit in our result. 
Result so far: 12136.137931
The remainder is 300 after subtracting 0 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Step 16:
870 goes into 3000 3 times with a remainder of 390.
The next digit of our result is 3. 
Result so far: 12136.13793103
If we take 2610 away from 3000, we end up 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.

The quotient of the division is 12136.13793103, and the remainder is 3.9e-07.