We look at the division of 2142623 by 51 
Our goal is to divide 2142623 by 51.

Let's proceed to step 1:
The number 51 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 51

Moving on to step 2:
When dividing 21 by 51, we get 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Take the next digit (4) from the dividend and append it to 21, then repeat: 214 / 51

On to step 3:
The number 51 fits into 214 4 times, leaving a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 204 from 214 and we're left with 10.
Fetch the next digit (2) from the dividend, attach it to 10 and continue: 102 / 51

Advancing to step 4:
The number 51 fits into 102 2 times, leaving a remainder of 0.
The next digit of our result is 2. 
Result so far: 42.0
If we take 102 away from 102, we end up with 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 51

Advancing to step 5:
If we divide 6 by 51, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 420.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (2) from the dividend and append it to 6, then repeat: 62 / 51

Step 6:
62 divided by 51 is 1 with a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 4201.0
Subtracting 51 from 62 leaves us with 11.
Take the next digit (3) from the dividend and append it to 11, then repeat: 113 / 51

Step 7:
51 goes into 113 2 times with a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 42012.0
Deduct 102 from 113 and we're left 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.

Let's proceed to step 8:
The number 51 fits into 110 2 times, leaving a remainder of 8.
The next digit of our result is 2. 
Result so far: 42012.2
If we subtract 102 from 110, we 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.

Let's proceed to step 9:
51 goes into 80 1 times with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 42012.21
If we subtract 51 from 80, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 10:
290 divided by 51 is 5 with a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 42012.215
Deduct 255 from 290 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 11:
51 goes into 350 6 times with a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 42012.2156
Subtract 306 from 350 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 12:
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: 42012.21568
Subtract 408 from 440 to 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.

Going ahead to step 13:
320 divided by 51 is 6 with a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 42012.215686
If we take 306 away from 320, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 14:
When dividing 140 by 51, we get 2 with a remainder of 38.
Record the quotient 2 as the next digit in the result. 
Result so far: 42012.2156862
Subtracting 102 from 140 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 15:
The number 51 fits into 380 7 times, leaving a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 42012.21568627
Subtracting 357 from 380 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The final result is 42012.21568627 with a remainder of 2.3e-08.