We look at the division of 78444609 by 866 
We're looking to find how many times 866 goes into 78444609.

Let's proceed to step 1:
The number 866 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 866

Step 2:
The number 866 fits into 78 0 times, leaving a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Bring next digit (4) of the dividend behind the 78 and repeat the process: 784 / 866

Advancing to step 3:
If we divide 784 by 866, we get 0 and a remainder of 784.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 784, we end up with 784.
Include the next digit (4) from the dividend after 784, then repeat: 7844 / 866

Advancing to step 4:
The number 866 fits into 7844 9 times, leaving a remainder of 50.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtracting 7794 from 7844 leaves us with 50.
Take the next digit (4) from the dividend and append it to 50, then repeat: 504 / 866

Let's proceed to step 5:
866 goes into 504 0 times with a remainder of 504.
Put 0 as the next digit of the answer. 
Result so far: 90.0
Subtracting 0 from 504 leaves us with 504.
Bring next digit (6) of the dividend behind the 504 and repeat the process: 5046 / 866

Going ahead to step 6:
866 goes into 5046 5 times with a remainder of 716.
Write down 5 as next digit of the result. 
Result so far: 905.0
Subtract 4330 from 5046 to get 716.
Bring next digit (0) of the dividend behind the 716 and repeat the process: 7160 / 866

Let's proceed to step 7:
If we divide 7160 by 866, we get 8 and a remainder of 232.
The next digit of our result is 8. 
Result so far: 9058.0
If we take 6928 away from 7160, we end up with 232.
Grab the next digit (9) from the dividend, add it to 232, then carry on: 2329 / 866

Step 8:
When dividing 2329 by 866, we get 2 with a remainder of 597.
Put 2 as the next digit of the answer. 
Result so far: 90582.0
Deduct 1732 from 2329 and we're left with 597.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5970, and continue the process.

Going ahead to step 9:
When dividing 5970 by 866, we get 6 with a remainder of 774.
The number 6 becomes the next digit in our result. 
Result so far: 90582.6
Subtract 5196 from 5970 to get 774.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7740, and continue the process.

Let's proceed to step 10:
7740 divided by 866 is 8 with a remainder of 812.
Write down 8 as next digit of the result. 
Result so far: 90582.68
Subtracting 6928 from 7740 leaves us with 812.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8120, and continue the process.

Step 11:
When dividing 8120 by 866, we get 9 with a remainder of 326.
The number 9 becomes the next digit in our result. 
Result so far: 90582.689
If we take 7794 away from 8120, we end up with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Step 12:
866 goes into 3260 3 times with a remainder of 662.
Write down 3 as next digit of the result. 
Result so far: 90582.6893
Subtract 2598 from 3260 to get 662.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6620, and continue the process.

Moving on to step 13:
866 can be fit into 6620 7 times, resulting in a remainder of 558.
Use 7 as the next digit of our solution. 
Result so far: 90582.68937
The remainder is 558 after subtracting 6062 from 6620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5580, and continue the process.

Let's proceed to step 14:
The number 866 fits into 5580 6 times, leaving a remainder of 384.
Put 6 as the next digit of the answer. 
Result so far: 90582.689376
Subtract 5196 from 5580 to get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

On to step 15:
866 can be fit into 3840 4 times, resulting in a remainder of 376.
Write down 4 as next digit of the result. 
Result so far: 90582.6893764
If we subtract 3464 from 3840, we get 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

On to step 16:
When dividing 3760 by 866, we get 4 with a remainder of 296.
Put 4 as the next digit of the answer. 
Result so far: 90582.68937644
If we take 3464 away from 3760, we end up with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

The final result is 90582.68937644 with a remainder of 2.96e-07.