87406138 ÷ 868 
We want to divide 87406138 by 868.

Going ahead to step 1:
8 divided by 868 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 868

On to step 2:
868 goes into 87 0 times with a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Bring next digit (4) of the dividend behind the 87 and repeat the process: 874 / 868

Let's proceed to step 3:
874 divided by 868 is 1 with a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 868 from 874 to get 6.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 868

Going ahead to step 4:
The number 868 fits into 60 0 times, leaving a remainder of 60.
The next digit of our result is 0. 
Result so far: 10.0
Deduct 0 from 60 and we're left with 60.
Include the next digit (6) from the dividend after 60, then repeat: 606 / 868

On to step 5:
606 divided by 868 is 0 with a remainder of 606.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
Subtract 0 from 606 to get 606.
Include the next digit (1) from the dividend after 606, then repeat: 6061 / 868

Going ahead to step 6:
If we divide 6061 by 868, we get 6 and a remainder of 853.
Write down 6 as next digit of the result. 
Result so far: 1006.0
If we subtract 5208 from 6061, we get 853.
Grab the next digit (3) from the dividend, add it to 853, then carry on: 8533 / 868

Advancing to step 7:
868 can be fit into 8533 9 times, resulting in a remainder of 721.
Use 9 as the next digit of our solution. 
Result so far: 10069.0
The remainder is 721 after subtracting 7812 from 8533.
Include the next digit (8) from the dividend after 721, then repeat: 7218 / 868

Going ahead to step 8:
868 goes into 7218 8 times with a remainder of 274.
Use 8 as the next digit of our solution. 
Result so far: 100698.0
The remainder is 274 after subtracting 6944 from 7218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Advancing to step 9:
868 can be fit into 2740 3 times, resulting in a remainder of 136.
Use 3 as the next digit of our solution. 
Result so far: 100698.3
The remainder is 136 after subtracting 2604 from 2740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Let's proceed to step 10:
868 can be fit into 1360 1 times, resulting in a remainder of 492.
Record the quotient 1 as the next digit in the result. 
Result so far: 100698.31
Deduct 868 from 1360 and we're left with 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Step 11:
The number 868 fits into 4920 5 times, leaving a remainder of 580.
The number 5 becomes the next digit in our result. 
Result so far: 100698.315
If we take 4340 away from 4920, we end up with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Moving on to step 12:
5800 divided by 868 is 6 with a remainder of 592.
Record the quotient 6 as the next digit in the result. 
Result so far: 100698.3156
Deduct 5208 from 5800 and we're left with 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Moving on to step 13:
868 goes into 5920 6 times with a remainder of 712.
The number 6 becomes the next digit in our result. 
Result so far: 100698.31566
If we subtract 5208 from 5920, we get 712.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

The final outcome is 100698.31566, with a leftover of 0.000712.