87404411 divided by 840 
We want to divide 87404411 by 840.

Advancing to step 1:
When dividing 8 by 840, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 840

Let's proceed to step 2:
840 can be fit into 87 0 times, resulting in a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Append the next digit (4) from the dividend to 87 and continue with: 874 / 840

On to step 3:
840 goes into 874 1 times with a remainder of 34.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 840 from 874 to get 34.
Grab the next digit (0) from the dividend, add it to 34, then carry on: 340 / 840

Let's proceed to step 4:
840 can be fit into 340 0 times, resulting in a remainder of 340.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtracting 0 from 340 leaves us with 340.
Fetch the next digit (4) from the dividend, attach it to 340 and continue: 3404 / 840

Let's proceed to step 5:
3404 divided by 840 is 4 with a remainder of 44.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
If we take 3360 away from 3404, we end up with 44.
Append the next digit (4) from the dividend to 44 and continue with: 444 / 840

Let's proceed to step 6:
444 divided by 840 is 0 with a remainder of 444.
Use 0 as the next digit of our solution. 
Result so far: 1040.0
Subtracting 0 from 444 leaves us with 444.
Include the next digit (1) from the dividend after 444, then repeat: 4441 / 840

Going ahead to step 7:
840 can be fit into 4441 5 times, resulting in a remainder of 241.
Use 5 as the next digit of our solution. 
Result so far: 10405.0
Deduct 4200 from 4441 and we're left with 241.
Take the next digit (1) from the dividend and append it to 241, then repeat: 2411 / 840

Advancing to step 8:
If we divide 2411 by 840, we get 2 and a remainder of 731.
Put 2 as the next digit of the answer. 
Result so far: 104052.0
Subtract 1680 from 2411 to get 731.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7310, and continue the process.

Moving on to step 9:
840 can be fit into 7310 8 times, resulting in a remainder of 590.
The next digit of our result is 8. 
Result so far: 104052.8
Subtract 6720 from 7310 to get 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 10:
The number 840 fits into 5900 7 times, leaving a remainder of 20.
Put 7 as the next digit of the answer. 
Result so far: 104052.87
Deduct 5880 from 5900 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
840 can be fit into 200 0 times, resulting in a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 104052.87
Deduct 0 from 200 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 12:
2000 divided by 840 is 2 with a remainder of 320.
The number 2 becomes the next digit in our result. 
Result so far: 104052.8702
If we subtract 1680 from 2000, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 13:
840 can be fit into 3200 3 times, resulting in a remainder of 680.
Record the quotient 3 as the next digit in the result. 
Result so far: 104052.87023
The remainder is 680 after subtracting 2520 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

On to step 14:
The number 840 fits into 6800 8 times, leaving a remainder of 80.
Write down 8 as next digit of the result. 
Result so far: 104052.870238
Subtracting 6720 from 6800 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 15:
840 can be fit into 800 0 times, resulting in a remainder of 800.
The next digit of our result is 0. 
Result so far: 104052.870238
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.

Advancing to step 16:
8000 divided by 840 is 9 with a remainder of 440.
Use 9 as the next digit of our solution. 
Result so far: 104052.87023809
Subtracting 7560 from 8000 leaves us with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

The final outcome is 104052.87023809, with a leftover of 4.4e-07.