We're dividing 51127702 by 407 
We want to divide 51127702 by 407.

Going ahead to step 1:
407 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 407

Step 2:
If we divide 51 by 407, we get 0 and a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Bring next digit (1) of the dividend behind the 51 and repeat the process: 511 / 407

Going ahead to step 3:
If we divide 511 by 407, we get 1 and a remainder of 104.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 407 from 511 and we're left with 104.
Fetch the next digit (2) from the dividend, attach it to 104 and continue: 1042 / 407

Let's proceed to step 4:
If we divide 1042 by 407, we get 2 and a remainder of 228.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 814 from 1042 to get 228.
Bring next digit (7) of the dividend behind the 228 and repeat the process: 2287 / 407

Step 5:
If we divide 2287 by 407, we get 5 and a remainder of 252.
The number 5 becomes the next digit in our result. 
Result so far: 125.0
Subtract 2035 from 2287 to get 252.
Include the next digit (7) from the dividend after 252, then repeat: 2527 / 407

Moving on to step 6:
The number 407 fits into 2527 6 times, leaving a remainder of 85.
The next digit of our result is 6. 
Result so far: 1256.0
Deduct 2442 from 2527 and we're left with 85.
Fetch the next digit (0) from the dividend, attach it to 85 and continue: 850 / 407

Going ahead to step 7:
407 goes into 850 2 times with a remainder of 36.
The next digit of our result is 2. 
Result so far: 12562.0
Deduct 814 from 850 and we're left with 36.
Append the next digit (2) from the dividend to 36 and continue with: 362 / 407

Moving on to step 8:
When dividing 362 by 407, we get 0 with a remainder of 362.
Use 0 as the next digit of our solution. 
Result so far: 125620.0
Subtract 0 from 362 to get 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Moving on to step 9:
407 goes into 3620 8 times with a remainder of 364.
The number 8 becomes the next digit in our result. 
Result so far: 125620.8
If we subtract 3256 from 3620, we get 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Advancing to step 10:
The number 407 fits into 3640 8 times, leaving a remainder of 384.
Write down 8 as next digit of the result. 
Result so far: 125620.88
Subtracting 3256 from 3640 leaves us with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

In conclusion, the division gives 125620.88 with a balance of 0.384.