81043490 divided by 870 
Our goal is to divide 81043490 by 870.

Going ahead to step 1:
870 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 870

Moving on to step 2:
81 divided by 870 is 0 with a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Grab the next digit (0) from the dividend, add it to 81, then carry on: 810 / 870

Advancing to step 3:
870 goes into 810 0 times with a remainder of 810.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 810 and we're left with 810.
Include the next digit (4) from the dividend after 810, then repeat: 8104 / 870

Going ahead to step 4:
870 can be fit into 8104 9 times, resulting in a remainder of 274.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
The remainder is 274 after subtracting 7830 from 8104.
Bring next digit (3) of the dividend behind the 274 and repeat the process: 2743 / 870

On to step 5:
If we divide 2743 by 870, we get 3 and a remainder of 133.
The next digit of our result is 3. 
Result so far: 93.0
The remainder is 133 after subtracting 2610 from 2743.
Bring next digit (4) of the dividend behind the 133 and repeat the process: 1334 / 870

Moving on to step 6:
1334 divided by 870 is 1 with a remainder of 464.
Write down 1 as next digit of the result. 
Result so far: 931.0
Deduct 870 from 1334 and we're left with 464.
Grab the next digit (9) from the dividend, add it to 464, then carry on: 4649 / 870

On to step 7:
If we divide 4649 by 870, we get 5 and a remainder of 299.
The number 5 becomes the next digit in our result. 
Result so far: 9315.0
Deduct 4350 from 4649 and we're left with 299.
Bring next digit (0) of the dividend behind the 299 and repeat the process: 2990 / 870

Going ahead to step 8:
If we divide 2990 by 870, we get 3 and a remainder of 380.
The next digit of our result is 3. 
Result so far: 93153.0
The remainder is 380 after subtracting 2610 from 2990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 9:
870 can be fit into 3800 4 times, resulting in a remainder of 320.
The next digit of our result is 4. 
Result so far: 93153.4
Deduct 3480 from 3800 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 10:
870 goes into 3200 3 times with a remainder of 590.
The next digit of our result is 3. 
Result so far: 93153.43
Subtracting 2610 from 3200 leaves us with 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Step 11:
5900 divided by 870 is 6 with a remainder of 680.
The number 6 becomes the next digit in our result. 
Result so far: 93153.436
Subtracting 5220 from 5900 leaves us with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Moving on to step 12:
870 goes into 6800 7 times with a remainder of 710.
The next digit of our result is 7. 
Result so far: 93153.4367
If we take 6090 away from 6800, we end up with 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7100, and continue the process.

Advancing to step 13:
870 can be fit into 7100 8 times, resulting in a remainder of 140.
Write down 8 as next digit of the result. 
Result so far: 93153.43678
Deduct 6960 from 7100 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 14:
870 can be fit into 1400 1 times, resulting in a remainder of 530.
Put 1 as the next digit of the answer. 
Result so far: 93153.436781
If we subtract 870 from 1400, we get 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

On to step 15:
The number 870 fits into 5300 6 times, leaving a remainder of 80.
Put 6 as the next digit of the answer. 
Result so far: 93153.4367816
If we subtract 5220 from 5300, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 16:
870 goes into 800 0 times with a remainder of 800.
Use 0 as the next digit of our solution. 
Result so far: 93153.4367816
Subtract 0 from 800 to get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

The quotient of the division is 93153.4367816, and the remainder is 8e-07.