We look at the division of 50118585 by 403 
We're looking to find how many times 403 goes into 50118585.

On to step 1:
403 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 403

On to step 2:
The number 403 fits into 50 0 times, leaving a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 50 after subtracting 0 from 50.
Take the next digit (1) from the dividend and append it to 50, then repeat: 501 / 403

Going ahead to step 3:
If we divide 501 by 403, we get 1 and a remainder of 98.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 403 from 501 and we're left with 98.
Bring next digit (1) of the dividend behind the 98 and repeat the process: 981 / 403

Going ahead to step 4:
981 divided by 403 is 2 with a remainder of 175.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 806 from 981 to get 175.
Fetch the next digit (8) from the dividend, attach it to 175 and continue: 1758 / 403

Step 5:
The number 403 fits into 1758 4 times, leaving a remainder of 146.
The number 4 becomes the next digit in our result. 
Result so far: 124.0
If we subtract 1612 from 1758, we get 146.
Include the next digit (5) from the dividend after 146, then repeat: 1465 / 403

Advancing to step 6:
If we divide 1465 by 403, we get 3 and a remainder of 256.
Put 3 as the next digit of the answer. 
Result so far: 1243.0
Deduct 1209 from 1465 and we're left with 256.
Grab the next digit (8) from the dividend, add it to 256, then carry on: 2568 / 403

Let's proceed to step 7:
403 can be fit into 2568 6 times, resulting in a remainder of 150.
The next digit of our result is 6. 
Result so far: 12436.0
The remainder is 150 after subtracting 2418 from 2568.
Include the next digit (5) from the dividend after 150, then repeat: 1505 / 403

Advancing to step 8:
1505 divided by 403 is 3 with a remainder of 296.
The number 3 becomes the next digit in our result. 
Result so far: 124363.0
If we subtract 1209 from 1505, we get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Moving on to step 9:
If we divide 2960 by 403, we get 7 and a remainder of 139.
Record the quotient 7 as the next digit in the result. 
Result so far: 124363.7
If we subtract 2821 from 2960, we get 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Moving on to step 10:
The number 403 fits into 1390 3 times, leaving a remainder of 181.
Put 3 as the next digit of the answer. 
Result so far: 124363.73
Subtract 1209 from 1390 to get 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

On to step 11:
The number 403 fits into 1810 4 times, leaving a remainder of 198.
The number 4 becomes the next digit in our result. 
Result so far: 124363.734
Deduct 1612 from 1810 and we're left with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Going ahead to step 12:
When dividing 1980 by 403, we get 4 with a remainder of 368.
Record the quotient 4 as the next digit in the result. 
Result so far: 124363.7344
The remainder is 368 after subtracting 1612 from 1980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

The quotient of the division is 124363.7344, and the remainder is 0.00368.