We're dividing 8666386 by 207 
We want to divide 8666386 by 207.

Step 1:
207 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 207

Moving on to step 2:
If we divide 86 by 207, we get 0 and a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Bring next digit (6) of the dividend behind the 86 and repeat the process: 866 / 207

On to step 3:
207 goes into 866 4 times with a remainder of 38.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 828 from 866 and we're left with 38.
Grab the next digit (6) from the dividend, add it to 38, then carry on: 386 / 207

Moving on to step 4:
When dividing 386 by 207, we get 1 with a remainder of 179.
Write down 1 as next digit of the result. 
Result so far: 41.0
Subtract 207 from 386 to get 179.
Include the next digit (3) from the dividend after 179, then repeat: 1793 / 207

Advancing to step 5:
The number 207 fits into 1793 8 times, leaving a remainder of 137.
Write down 8 as next digit of the result. 
Result so far: 418.0
Deduct 1656 from 1793 and we're left with 137.
Take the next digit (8) from the dividend and append it to 137, then repeat: 1378 / 207

Moving on to step 6:
When dividing 1378 by 207, we get 6 with a remainder of 136.
Write down 6 as next digit of the result. 
Result so far: 4186.0
Subtracting 1242 from 1378 leaves us with 136.
Append the next digit (6) from the dividend to 136 and continue with: 1366 / 207

Advancing to step 7:
207 goes into 1366 6 times with a remainder of 124.
Record the quotient 6 as the next digit in the result. 
Result so far: 41866.0
If we take 1242 away from 1366, we end up with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

On to step 8:
The number 207 fits into 1240 5 times, leaving a remainder of 205.
The next digit of our result is 5. 
Result so far: 41866.5
Subtracting 1035 from 1240 leaves us with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 9:
207 can be fit into 2050 9 times, resulting in a remainder of 187.
Record the quotient 9 as the next digit in the result. 
Result so far: 41866.59
The remainder is 187 after subtracting 1863 from 2050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Going ahead to step 10:
If we divide 1870 by 207, we get 9 and a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 41866.599
Deduct 1863 from 1870 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

In conclusion, the division gives 41866.599 with a balance of 0.0007.