68545186 ÷ 503 
We want to figure out the number of times 68545186 can be divided by 503.

Let's proceed to step 1:
The number 503 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 503

Step 2:
When dividing 68 by 503, we get 0 with a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 68 after subtracting 0 from 68.
Fetch the next digit (5) from the dividend, attach it to 68 and continue: 685 / 503

Moving on to step 3:
503 goes into 685 1 times with a remainder of 182.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 503 from 685 leaves us with 182.
Append the next digit (4) from the dividend to 182 and continue with: 1824 / 503

Step 4:
503 goes into 1824 3 times with a remainder of 315.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtracting 1509 from 1824 leaves us with 315.
Include the next digit (5) from the dividend after 315, then repeat: 3155 / 503

Moving on to step 5:
503 can be fit into 3155 6 times, resulting in a remainder of 137.
Record the quotient 6 as the next digit in the result. 
Result so far: 136.0
The remainder is 137 after subtracting 3018 from 3155.
Fetch the next digit (1) from the dividend, attach it to 137 and continue: 1371 / 503

Going ahead to step 6:
If we divide 1371 by 503, we get 2 and a remainder of 365.
Put 2 as the next digit of the answer. 
Result so far: 1362.0
Subtract 1006 from 1371 to get 365.
Bring next digit (8) of the dividend behind the 365 and repeat the process: 3658 / 503

Advancing to step 7:
503 can be fit into 3658 7 times, resulting in a remainder of 137.
The number 7 becomes the next digit in our result. 
Result so far: 13627.0
If we take 3521 away from 3658, we end up with 137.
Take the next digit (6) from the dividend and append it to 137, then repeat: 1376 / 503

On to step 8:
If we divide 1376 by 503, we get 2 and a remainder of 370.
The next digit of our result is 2. 
Result so far: 136272.0
If we subtract 1006 from 1376, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

On to step 9:
The number 503 fits into 3700 7 times, leaving a remainder of 179.
Use 7 as the next digit of our solution. 
Result so far: 136272.7
If we take 3521 away from 3700, we end up with 179.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Advancing to step 10:
503 can be fit into 1790 3 times, resulting in a remainder of 281.
Use 3 as the next digit of our solution. 
Result so far: 136272.73
Subtract 1509 from 1790 to get 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Advancing to step 11:
2810 divided by 503 is 5 with a remainder of 295.
Put 5 as the next digit of the answer. 
Result so far: 136272.735
If we take 2515 away from 2810, we end up with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

On to step 12:
503 can be fit into 2950 5 times, resulting in a remainder of 435.
Write down 5 as next digit of the result. 
Result so far: 136272.7355
Subtracting 2515 from 2950 leaves us with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

The final outcome is 136272.7355, with a leftover of 0.00435.