We look at the division of 86663510 by 486 
We want to divide 86663510 by 486.

On to step 1:
If we divide 8 by 486, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 486

Step 2:
86 divided by 486 is 0 with a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Grab the next digit (6) from the dividend, add it to 86, then carry on: 866 / 486

Moving on to step 3:
The number 486 fits into 866 1 times, leaving a remainder of 380.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 486 from 866, we get 380.
Append the next digit (6) from the dividend to 380 and continue with: 3806 / 486

Advancing to step 4:
486 can be fit into 3806 7 times, resulting in a remainder of 404.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Deduct 3402 from 3806 and we're left with 404.
Bring next digit (3) of the dividend behind the 404 and repeat the process: 4043 / 486

Moving on to step 5:
486 can be fit into 4043 8 times, resulting in a remainder of 155.
The number 8 becomes the next digit in our result. 
Result so far: 178.0
Deduct 3888 from 4043 and we're left with 155.
Fetch the next digit (5) from the dividend, attach it to 155 and continue: 1555 / 486

Let's proceed to step 6:
486 goes into 1555 3 times with a remainder of 97.
Record the quotient 3 as the next digit in the result. 
Result so far: 1783.0
If we subtract 1458 from 1555, we get 97.
Include the next digit (1) from the dividend after 97, then repeat: 971 / 486

Let's proceed to step 7:
When dividing 971 by 486, we get 1 with a remainder of 485.
Put 1 as the next digit of the answer. 
Result so far: 17831.0
Subtract 486 from 971 to get 485.
Grab the next digit (0) from the dividend, add it to 485, then carry on: 4850 / 486

Moving on to step 8:
486 goes into 4850 9 times with a remainder of 476.
Use 9 as the next digit of our solution. 
Result so far: 178319.0
Deduct 4374 from 4850 and we're left with 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Moving on to step 9:
When dividing 4760 by 486, we get 9 with a remainder of 386.
Record the quotient 9 as the next digit in the result. 
Result so far: 178319.9
If we subtract 4374 from 4760, we get 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Step 10:
When dividing 3860 by 486, we get 7 with a remainder of 458.
Use 7 as the next digit of our solution. 
Result so far: 178319.97
Subtracting 3402 from 3860 leaves us with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Step 11:
486 can be fit into 4580 9 times, resulting in a remainder of 206.
The next digit of our result is 9. 
Result so far: 178319.979
If we subtract 4374 from 4580, we get 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Let's proceed to step 12:
486 can be fit into 2060 4 times, resulting in a remainder of 116.
The next digit of our result is 4. 
Result so far: 178319.9794
If we take 1944 away from 2060, we end up with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Step 13:
When dividing 1160 by 486, we get 2 with a remainder of 188.
Record the quotient 2 as the next digit in the result. 
Result so far: 178319.97942
Subtract 972 from 1160 to get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Step 14:
486 can be fit into 1880 3 times, resulting in a remainder of 422.
Put 3 as the next digit of the answer. 
Result so far: 178319.979423
Subtracting 1458 from 1880 leaves us with 422.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

Going ahead to step 15:
The number 486 fits into 4220 8 times, leaving a remainder of 332.
Record the quotient 8 as the next digit in the result. 
Result so far: 178319.9794238
Deduct 3888 from 4220 and we're left with 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

On to step 16:
If we divide 3320 by 486, we get 6 and a remainder of 404.
Use 6 as the next digit of our solution. 
Result so far: 178319.97942386
If we subtract 2916 from 3320, we get 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

The quotient of the division is 178319.97942386, and the remainder is 4.04e-07.