We're dividing 81100151 by 503 
Let's see how many times 503 fits into 81100151.

Let's proceed to step 1:
8 divided by 503 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 503

Advancing to step 2:
If we divide 81 by 503, we get 0 and a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Bring next digit (1) of the dividend behind the 81 and repeat the process: 811 / 503

Let's proceed to step 3:
503 can be fit into 811 1 times, resulting in a remainder of 308.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 503 from 811 to get 308.
Take the next digit (0) from the dividend and append it to 308, then repeat: 3080 / 503

Advancing to step 4:
If we divide 3080 by 503, we get 6 and a remainder of 62.
The next digit of our result is 6. 
Result so far: 16.0
The remainder is 62 after subtracting 3018 from 3080.
Append the next digit (0) from the dividend to 62 and continue with: 620 / 503

Moving on to step 5:
The number 503 fits into 620 1 times, leaving a remainder of 117.
Record the quotient 1 as the next digit in the result. 
Result so far: 161.0
The remainder is 117 after subtracting 503 from 620.
Include the next digit (1) from the dividend after 117, then repeat: 1171 / 503

Advancing to step 6:
503 can be fit into 1171 2 times, resulting in a remainder of 165.
Write down 2 as next digit of the result. 
Result so far: 1612.0
Deduct 1006 from 1171 and we're left with 165.
Bring next digit (5) of the dividend behind the 165 and repeat the process: 1655 / 503

Let's proceed to step 7:
The number 503 fits into 1655 3 times, leaving a remainder of 146.
Record the quotient 3 as the next digit in the result. 
Result so far: 16123.0
The remainder is 146 after subtracting 1509 from 1655.
Include the next digit (1) from the dividend after 146, then repeat: 1461 / 503

Advancing to step 8:
1461 divided by 503 is 2 with a remainder of 455.
The number 2 becomes the next digit in our result. 
Result so far: 161232.0
If we subtract 1006 from 1461, we get 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Going ahead to step 9:
The number 503 fits into 4550 9 times, leaving a remainder of 23.
Use 9 as the next digit of our solution. 
Result so far: 161232.9
If we subtract 4527 from 4550, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 10:
503 goes into 230 0 times with a remainder of 230.
The next digit of our result is 0. 
Result so far: 161232.9
Subtract 0 from 230 to get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 11:
If we divide 2300 by 503, we get 4 and a remainder of 288.
Record the quotient 4 as the next digit in the result. 
Result so far: 161232.904
The remainder is 288 after subtracting 2012 from 2300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 12:
If we divide 2880 by 503, we get 5 and a remainder of 365.
The number 5 becomes the next digit in our result. 
Result so far: 161232.9045
Subtracting 2515 from 2880 leaves us with 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

Moving on to step 13:
503 goes into 3650 7 times with a remainder of 129.
The next digit of our result is 7. 
Result so far: 161232.90457
Deduct 3521 from 3650 and we're left with 129.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Step 14:
The number 503 fits into 1290 2 times, leaving a remainder of 284.
Record the quotient 2 as the next digit in the result. 
Result so far: 161232.904572
The remainder is 284 after subtracting 1006 from 1290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Advancing to step 15:
If we divide 2840 by 503, we get 5 and a remainder of 325.
Put 5 as the next digit of the answer. 
Result so far: 161232.9045725
If we take 2515 away from 2840, we end up with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

On to step 16:
The number 503 fits into 3250 6 times, leaving a remainder of 232.
The number 6 becomes the next digit in our result. 
Result so far: 161232.90457256
Subtracting 3018 from 3250 leaves us with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

In conclusion, the division gives 161232.90457256 with a balance of 2.32e-07.