We look at the division of 49940539 by 405 
Let's see how many times 405 fits into 49940539.

On to step 1:
The number 405 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 405

Moving on to step 2:
When dividing 49 by 405, we get 0 with a remainder of 49.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 49 and we're left with 49.
Bring next digit (9) of the dividend behind the 49 and repeat the process: 499 / 405

On to step 3:
405 goes into 499 1 times with a remainder of 94.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 405 from 499, we get 94.
Take the next digit (4) from the dividend and append it to 94, then repeat: 944 / 405

Going ahead to step 4:
The number 405 fits into 944 2 times, leaving a remainder of 134.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we subtract 810 from 944, we get 134.
Grab the next digit (0) from the dividend, add it to 134, then carry on: 1340 / 405

Let's proceed to step 5:
The number 405 fits into 1340 3 times, leaving a remainder of 125.
Record the quotient 3 as the next digit in the result. 
Result so far: 123.0
Subtracting 1215 from 1340 leaves us with 125.
Fetch the next digit (5) from the dividend, attach it to 125 and continue: 1255 / 405

Moving on to step 6:
If we divide 1255 by 405, we get 3 and a remainder of 40.
The number 3 becomes the next digit in our result. 
Result so far: 1233.0
Subtract 1215 from 1255 to get 40.
Grab the next digit (3) from the dividend, add it to 40, then carry on: 403 / 405

Going ahead to step 7:
The number 405 fits into 403 0 times, leaving a remainder of 403.
Use 0 as the next digit of our solution. 
Result so far: 12330.0
Subtract 0 from 403 to get 403.
Grab the next digit (9) from the dividend, add it to 403, then carry on: 4039 / 405

Going ahead to step 8:
405 can be fit into 4039 9 times, resulting in a remainder of 394.
Put 9 as the next digit of the answer. 
Result so far: 123309.0
The remainder is 394 after subtracting 3645 from 4039.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

On to step 9:
When dividing 3940 by 405, we get 9 with a remainder of 295.
Record the quotient 9 as the next digit in the result. 
Result so far: 123309.9
If we take 3645 away from 3940, 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.

Advancing to step 10:
405 can be fit into 2950 7 times, resulting in a remainder of 115.
Use 7 as the next digit of our solution. 
Result so far: 123309.97
If we take 2835 away from 2950, we end up with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Going ahead to step 11:
1150 divided by 405 is 2 with a remainder of 340.
Write down 2 as next digit of the result. 
Result so far: 123309.972
If we take 810 away from 1150, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 12:
If we divide 3400 by 405, we get 8 and a remainder of 160.
Use 8 as the next digit of our solution. 
Result so far: 123309.9728
The remainder is 160 after subtracting 3240 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 13:
405 goes into 1600 3 times with a remainder of 385.
Record the quotient 3 as the next digit in the result. 
Result so far: 123309.97283
Subtract 1215 from 1600 to get 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Step 14:
When dividing 3850 by 405, we get 9 with a remainder of 205.
Put 9 as the next digit of the answer. 
Result so far: 123309.972839
Subtract 3645 from 3850 to get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 15:
2050 divided by 405 is 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 123309.9728395
Subtract 2025 from 2050 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 16:
405 can be fit into 250 0 times, resulting in a remainder of 250.
Record the quotient 0 as the next digit in the result. 
Result so far: 123309.9728395
The remainder is 250 after subtracting 0 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

After the division, we end up with 123309.9728395 and a remainder of 2.5e-07.