We're dividing 84004120 by 870 
We want to divide 84004120 by 870.

Step 1:
If we divide 8 by 870, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 870

Let's proceed to step 2:
When dividing 84 by 870, we get 0 with a remainder of 84.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 84 leaves us with 84.
Fetch the next digit (0) from the dividend, attach it to 84 and continue: 840 / 870

Let's proceed to step 3:
When dividing 840 by 870, we get 0 with a remainder of 840.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 840 to get 840.
Grab the next digit (0) from the dividend, add it to 840, then carry on: 8400 / 870

Let's proceed to step 4:
8400 divided by 870 is 9 with a remainder of 570.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we subtract 7830 from 8400, we get 570.
Append the next digit (4) from the dividend to 570 and continue with: 5704 / 870

Moving on to step 5:
If we divide 5704 by 870, we get 6 and a remainder of 484.
The number 6 becomes the next digit in our result. 
Result so far: 96.0
Subtract 5220 from 5704 to get 484.
Grab the next digit (1) from the dividend, add it to 484, then carry on: 4841 / 870

Moving on to step 6:
4841 divided by 870 is 5 with a remainder of 491.
The number 5 becomes the next digit in our result. 
Result so far: 965.0
Deduct 4350 from 4841 and we're left with 491.
Take the next digit (2) from the dividend and append it to 491, then repeat: 4912 / 870

Advancing to step 7:
The number 870 fits into 4912 5 times, leaving a remainder of 562.
Record the quotient 5 as the next digit in the result. 
Result so far: 9655.0
Subtracting 4350 from 4912 leaves us with 562.
Fetch the next digit (0) from the dividend, attach it to 562 and continue: 5620 / 870

On to step 8:
The number 870 fits into 5620 6 times, leaving a remainder of 400.
Put 6 as the next digit of the answer. 
Result so far: 96556.0
Subtracting 5220 from 5620 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 9:
4000 divided by 870 is 4 with a remainder of 520.
Record the quotient 4 as the next digit in the result. 
Result so far: 96556.4
Subtract 3480 from 4000 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 10:
If we divide 5200 by 870, we get 5 and a remainder of 850.
Put 5 as the next digit of the answer. 
Result so far: 96556.45
The remainder is 850 after subtracting 4350 from 5200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8500, and continue the process.

Going ahead to step 11:
8500 divided by 870 is 9 with a remainder of 670.
The number 9 becomes the next digit in our result. 
Result so far: 96556.459
Subtract 7830 from 8500 to get 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

Moving on to step 12:
If we divide 6700 by 870, we get 7 and a remainder of 610.
Put 7 as the next digit of the answer. 
Result so far: 96556.4597
If we subtract 6090 from 6700, we get 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

On to step 13:
If we divide 6100 by 870, we get 7 and a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 96556.45977
Deduct 6090 from 6100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 96556.45977 and a remainder of 1e-05.