81033564 ÷ 503 
We want to figure out the number of times 81033564 can be divided by 503.

Moving on to step 1:
8 divided by 503 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 503

On to step 2:
81 divided by 503 is 0 with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Grab the next digit (0) from the dividend, add it to 81, then carry on: 810 / 503

On to step 3:
If we divide 810 by 503, we get 1 and a remainder of 307.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 503 from 810 and we're left with 307.
Include the next digit (3) from the dividend after 307, then repeat: 3073 / 503

Let's proceed to step 4:
503 goes into 3073 6 times with a remainder of 55.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Subtracting 3018 from 3073 leaves us with 55.
Append the next digit (3) from the dividend to 55 and continue with: 553 / 503

Step 5:
When dividing 553 by 503, we get 1 with a remainder of 50.
The number 1 becomes the next digit in our result. 
Result so far: 161.0
Deduct 503 from 553 and we're left with 50.
Include the next digit (5) from the dividend after 50, then repeat: 505 / 503

Let's proceed to step 6:
503 can be fit into 505 1 times, resulting in a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1611.0
If we subtract 503 from 505, we get 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 503

Step 7:
When dividing 26 by 503, we get 0 with a remainder of 26.
Put 0 as the next digit of the answer. 
Result so far: 16110.0
Deduct 0 from 26 and we're left with 26.
Take the next digit (4) from the dividend and append it to 26, then repeat: 264 / 503

Advancing to step 8:
The number 503 fits into 264 0 times, leaving a remainder of 264.
Use 0 as the next digit of our solution. 
Result so far: 161100.0
The remainder is 264 after subtracting 0 from 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Let's proceed to step 9:
503 can be fit into 2640 5 times, resulting in a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 161100.5
The remainder is 125 after subtracting 2515 from 2640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Let's proceed to step 10:
If we divide 1250 by 503, we get 2 and a remainder of 244.
The number 2 becomes the next digit in our result. 
Result so far: 161100.52
The remainder is 244 after subtracting 1006 from 1250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Advancing to step 11:
When dividing 2440 by 503, we get 4 with a remainder of 428.
The number 4 becomes the next digit in our result. 
Result so far: 161100.524
Deduct 2012 from 2440 and we're left with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Step 12:
4280 divided by 503 is 8 with a remainder of 256.
Write down 8 as next digit of the result. 
Result so far: 161100.5248
The remainder is 256 after subtracting 4024 from 4280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Moving on to step 13:
The number 503 fits into 2560 5 times, leaving a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 161100.52485
Subtracting 2515 from 2560 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 14:
450 divided by 503 is 0 with a remainder of 450.
Write down 0 as next digit of the result. 
Result so far: 161100.52485
Subtracting 0 from 450 leaves us with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Step 15:
If we divide 4500 by 503, we get 8 and a remainder of 476.
The next digit of our result is 8. 
Result so far: 161100.5248508
The remainder is 476 after subtracting 4024 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Step 16:
When dividing 4760 by 503, we get 9 with a remainder of 233.
Write down 9 as next digit of the result. 
Result so far: 161100.52485089
Subtracting 4527 from 4760 leaves us with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Our division results in 161100.52485089 with a remaining 2.33e-07.