We look at the division of 81866100 by 553 
Our goal is to divide 81866100 by 553.

Going ahead to step 1:
8 divided by 553 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 553

On to step 2:
When dividing 81 by 553, we get 0 with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Append the next digit (8) from the dividend to 81 and continue with: 818 / 553

On to step 3:
553 goes into 818 1 times with a remainder of 265.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 265 after subtracting 553 from 818.
Include the next digit (6) from the dividend after 265, then repeat: 2656 / 553

Moving on to step 4:
553 can be fit into 2656 4 times, resulting in a remainder of 444.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtracting 2212 from 2656 leaves us with 444.
Fetch the next digit (6) from the dividend, attach it to 444 and continue: 4446 / 553

Moving on to step 5:
If we divide 4446 by 553, we get 8 and a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 148.0
Deduct 4424 from 4446 and we're left with 22.
Grab the next digit (1) from the dividend, add it to 22, then carry on: 221 / 553

Let's proceed to step 6:
221 divided by 553 is 0 with a remainder of 221.
The next digit of our result is 0. 
Result so far: 1480.0
Subtract 0 from 221 to get 221.
Take the next digit (0) from the dividend and append it to 221, then repeat: 2210 / 553

Going ahead to step 7:
The number 553 fits into 2210 3 times, leaving a remainder of 551.
Write down 3 as next digit of the result. 
Result so far: 14803.0
Deduct 1659 from 2210 and we're left with 551.
Fetch the next digit (0) from the dividend, attach it to 551 and continue: 5510 / 553

Going ahead to step 8:
The number 553 fits into 5510 9 times, leaving a remainder of 533.
Use 9 as the next digit of our solution. 
Result so far: 148039.0
Deduct 4977 from 5510 and we're left with 533.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5330, and continue the process.

Advancing to step 9:
If we divide 5330 by 553, we get 9 and a remainder of 353.
The next digit of our result is 9. 
Result so far: 148039.9
Deduct 4977 from 5330 and we're left with 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Let's proceed to step 10:
If we divide 3530 by 553, we get 6 and a remainder of 212.
The number 6 becomes the next digit in our result. 
Result so far: 148039.96
If we subtract 3318 from 3530, we get 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Step 11:
553 can be fit into 2120 3 times, resulting in a remainder of 461.
Write down 3 as next digit of the result. 
Result so far: 148039.963
The remainder is 461 after subtracting 1659 from 2120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4610, and continue the process.

On to step 12:
553 can be fit into 4610 8 times, resulting in a remainder of 186.
Put 8 as the next digit of the answer. 
Result so far: 148039.9638
If we subtract 4424 from 4610, we get 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

On to step 13:
The number 553 fits into 1860 3 times, leaving a remainder of 201.
Record the quotient 3 as the next digit in the result. 
Result so far: 148039.96383
Subtract 1659 from 1860 to get 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Step 14:
The number 553 fits into 2010 3 times, leaving a remainder of 351.
Put 3 as the next digit of the answer. 
Result so far: 148039.963833
If we take 1659 away from 2010, we end up with 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

In conclusion, the division gives 148039.963833 with a balance of 3.51e-05.