We're dividing 51403493 by 419 
Our goal is to divide 51403493 by 419.

Going ahead to step 1:
The number 419 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 419

Moving on to step 2:
When dividing 51 by 419, we get 0 with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Include the next digit (4) from the dividend after 51, then repeat: 514 / 419

Let's proceed to step 3:
If we divide 514 by 419, we get 1 and a remainder of 95.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 419 from 514 leaves us with 95.
Grab the next digit (0) from the dividend, add it to 95, then carry on: 950 / 419

Let's proceed to step 4:
419 goes into 950 2 times with a remainder of 112.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 838 from 950 to get 112.
Fetch the next digit (3) from the dividend, attach it to 112 and continue: 1123 / 419

Step 5:
The number 419 fits into 1123 2 times, leaving a remainder of 285.
Use 2 as the next digit of our solution. 
Result so far: 122.0
If we subtract 838 from 1123, we get 285.
Take the next digit (4) from the dividend and append it to 285, then repeat: 2854 / 419

Moving on to step 6:
If we divide 2854 by 419, we get 6 and a remainder of 340.
The number 6 becomes the next digit in our result. 
Result so far: 1226.0
If we take 2514 away from 2854, we end up with 340.
Bring next digit (9) of the dividend behind the 340 and repeat the process: 3409 / 419

Advancing to step 7:
419 goes into 3409 8 times with a remainder of 57.
Put 8 as the next digit of the answer. 
Result so far: 12268.0
If we subtract 3352 from 3409, we get 57.
Fetch the next digit (3) from the dividend, attach it to 57 and continue: 573 / 419

Advancing to step 8:
573 divided by 419 is 1 with a remainder of 154.
Put 1 as the next digit of the answer. 
Result so far: 122681.0
The remainder is 154 after subtracting 419 from 573.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Going ahead to step 9:
419 goes into 1540 3 times with a remainder of 283.
Record the quotient 3 as the next digit in the result. 
Result so far: 122681.3
If we take 1257 away from 1540, we end up with 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Moving on to step 10:
If we divide 2830 by 419, we get 6 and a remainder of 316.
Use 6 as the next digit of our solution. 
Result so far: 122681.36
If we subtract 2514 from 2830, we get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Going ahead to step 11:
419 can be fit into 3160 7 times, resulting in a remainder of 227.
Record the quotient 7 as the next digit in the result. 
Result so far: 122681.367
The remainder is 227 after subtracting 2933 from 3160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Moving on to step 12:
419 can be fit into 2270 5 times, resulting in a remainder of 175.
Use 5 as the next digit of our solution. 
Result so far: 122681.3675
Subtract 2095 from 2270 to get 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Moving on to step 13:
The number 419 fits into 1750 4 times, leaving a remainder of 74.
The number 4 becomes the next digit in our result. 
Result so far: 122681.36754
Subtract 1676 from 1750 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 14:
740 divided by 419 is 1 with a remainder of 321.
Use 1 as the next digit of our solution. 
Result so far: 122681.367541
The remainder is 321 after subtracting 419 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

Going ahead to step 15:
When dividing 3210 by 419, we get 7 with a remainder of 277.
Put 7 as the next digit of the answer. 
Result so far: 122681.3675417
Deduct 2933 from 3210 and we're left with 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Moving on to step 16:
When dividing 2770 by 419, we get 6 with a remainder of 256.
Record the quotient 6 as the next digit in the result. 
Result so far: 122681.36754176
If we take 2514 away from 2770, we end up with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

After the division, we end up with 122681.36754176 and a remainder of 2.56e-07.