We look at the division of 65515666 by 861 
We want to divide 65515666 by 861.

On to step 1:
If we divide 6 by 861, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 861

On to step 2:
When dividing 65 by 861, we get 0 with a remainder of 65.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 65, we get 65.
Grab the next digit (5) from the dividend, add it to 65, then carry on: 655 / 861

Let's proceed to step 3:
861 can be fit into 655 0 times, resulting in a remainder of 655.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 655 after subtracting 0 from 655.
Take the next digit (1) from the dividend and append it to 655, then repeat: 6551 / 861

Going ahead to step 4:
6551 divided by 861 is 7 with a remainder of 524.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 6027 from 6551, we get 524.
Fetch the next digit (5) from the dividend, attach it to 524 and continue: 5245 / 861

Step 5:
The number 861 fits into 5245 6 times, leaving a remainder of 79.
The next digit of our result is 6. 
Result so far: 76.0
If we subtract 5166 from 5245, we get 79.
Fetch the next digit (6) from the dividend, attach it to 79 and continue: 796 / 861

Step 6:
861 goes into 796 0 times with a remainder of 796.
The number 0 becomes the next digit in our result. 
Result so far: 760.0
Subtract 0 from 796 to get 796.
Append the next digit (6) from the dividend to 796 and continue with: 7966 / 861

Moving on to step 7:
861 goes into 7966 9 times with a remainder of 217.
The number 9 becomes the next digit in our result. 
Result so far: 7609.0
Subtract 7749 from 7966 to get 217.
Include the next digit (6) from the dividend after 217, then repeat: 2176 / 861

On to step 8:
861 can be fit into 2176 2 times, resulting in a remainder of 454.
The number 2 becomes the next digit in our result. 
Result so far: 76092.0
If we subtract 1722 from 2176, we get 454.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

Step 9:
When dividing 4540 by 861, we get 5 with a remainder of 235.
Record the quotient 5 as the next digit in the result. 
Result so far: 76092.5
If we subtract 4305 from 4540, we get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Let's proceed to step 10:
861 goes into 2350 2 times with a remainder of 628.
The next digit of our result is 2. 
Result so far: 76092.52
Subtracting 1722 from 2350 leaves us with 628.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

Step 11:
861 can be fit into 6280 7 times, resulting in a remainder of 253.
Put 7 as the next digit of the answer. 
Result so far: 76092.527
Subtracting 6027 from 6280 leaves us with 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

On to step 12:
If we divide 2530 by 861, we get 2 and a remainder of 808.
Use 2 as the next digit of our solution. 
Result so far: 76092.5272
If we subtract 1722 from 2530, we get 808.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8080, and continue the process.

On to step 13:
861 can be fit into 8080 9 times, resulting in a remainder of 331.
Write down 9 as next digit of the result. 
Result so far: 76092.52729
Subtracting 7749 from 8080 leaves us with 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Step 14:
861 goes into 3310 3 times with a remainder of 727.
Record the quotient 3 as the next digit in the result. 
Result so far: 76092.527293
Subtracting 2583 from 3310 leaves us with 727.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7270, and continue the process.

Going ahead to step 15:
861 goes into 7270 8 times with a remainder of 382.
Put 8 as the next digit of the answer. 
Result so far: 76092.5272938
If we take 6888 away from 7270, we end up with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

On to step 16:
When dividing 3820 by 861, we get 4 with a remainder of 376.
Put 4 as the next digit of the answer. 
Result so far: 76092.52729384
The remainder is 376 after subtracting 3444 from 3820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

After the division, we end up with 76092.52729384 and a remainder of 3.76e-07.