We look at the division of 742409 by 51 
Let's see how many times 51 fits into 742409.

Let's proceed to step 1:
The number 51 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 51

Going ahead to step 2:
If we divide 74 by 51, we get 1 and a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 23 after subtracting 51 from 74.
Grab the next digit (2) from the dividend, add it to 23, then carry on: 232 / 51

Going ahead to step 3:
If we divide 232 by 51, we get 4 and a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtracting 204 from 232 leaves us with 28.
Take the next digit (4) from the dividend and append it to 28, then repeat: 284 / 51

Step 4:
51 goes into 284 5 times with a remainder of 29.
Write down 5 as next digit of the result. 
Result so far: 145.0
Deduct 255 from 284 and we're left with 29.
Bring next digit (0) of the dividend behind the 29 and repeat the process: 290 / 51

Going ahead to step 5:
When dividing 290 by 51, we get 5 with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 1455.0
Deduct 255 from 290 and we're left with 35.
Bring next digit (9) of the dividend behind the 35 and repeat the process: 359 / 51

Moving on to step 6:
The number 51 fits into 359 7 times, leaving a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 14557.0
Subtract 357 from 359 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
The number 51 fits into 20 0 times, leaving a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 14557.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 8:
When dividing 200 by 51, we get 3 with a remainder of 47.
Write down 3 as next digit of the result. 
Result so far: 14557.03
Subtract 153 from 200 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 9:
The number 51 fits into 470 9 times, leaving a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 14557.039
If we take 459 away from 470, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 10:
110 divided by 51 is 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 14557.0392
Subtract 102 from 110 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
If we divide 80 by 51, we get 1 and a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 14557.03921
If we take 51 away from 80, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 12:
If we divide 290 by 51, we get 5 and a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 14557.039215
The remainder is 35 after subtracting 255 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 13:
If we divide 350 by 51, we get 6 and a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 14557.0392156
The remainder is 44 after subtracting 306 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 14:
If we divide 440 by 51, we get 8 and a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 14557.03921568
If we subtract 408 from 440, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The quotient of the division is 14557.03921568, and the remainder is 3.2e-08.