We divide 51408257 by 402
Our goal is to divide 51408257 by 402.

Let's proceed to step 1:
402 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 402

Step 2:
When dividing 51 by 402, we get 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Bring next digit (4) of the dividend behind the 51 and repeat the process: 514 / 402

Going ahead to step 3:
402 can be fit into 514 1 times, resulting in a remainder of 112.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 402 from 514 to get 112.
Append the next digit (0) from the dividend to 112 and continue with: 1120 / 402

Going ahead to step 4:
If we divide 1120 by 402, we get 2 and a remainder of 316.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we take 804 away from 1120, we end up with 316.
Grab the next digit (8) from the dividend, add it to 316, then carry on: 3168 / 402

On to step 5:
If we divide 3168 by 402, we get 7 and a remainder of 354.
Use 7 as the next digit of our solution. 
Result so far: 127.0
If we take 2814 away from 3168, we end up with 354.
Fetch the next digit (2) from the dividend, attach it to 354 and continue: 3542 / 402

Going ahead to step 6:
3542 divided by 402 is 8 with a remainder of 326.
Use 8 as the next digit of our solution. 
Result so far: 1278.0
If we take 3216 away from 3542, we end up with 326.
Take the next digit (5) from the dividend and append it to 326, then repeat: 3265 / 402

Going ahead to step 7:
When dividing 3265 by 402, we get 8 with a remainder of 49.
Use 8 as the next digit of our solution. 
Result so far: 12788.0
The remainder is 49 after subtracting 3216 from 3265.
Bring next digit (7) of the dividend behind the 49 and repeat the process: 497 / 402

Step 8:
The number 402 fits into 497 1 times, leaving a remainder of 95.
Use 1 as the next digit of our solution. 
Result so far: 127881.0
If we take 402 away from 497, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Advancing to step 9:
402 can be fit into 950 2 times, resulting in a remainder of 146.
The number 2 becomes the next digit in our result. 
Result so far: 127881.2
Subtracting 804 from 950 leaves us with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Moving on to step 10:
The number 402 fits into 1460 3 times, leaving a remainder of 254.
Write down 3 as next digit of the result. 
Result so far: 127881.23
If we subtract 1206 from 1460, we get 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Let's proceed to step 11:
When dividing 2540 by 402, we get 6 with a remainder of 128.
The next digit of our result is 6. 
Result so far: 127881.236
Subtracting 2412 from 2540 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Moving on to step 12:
1280 divided by 402 is 3 with a remainder of 74.
Put 3 as the next digit of the answer. 
Result so far: 127881.2363
Subtracting 1206 from 1280 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 13:
402 can be fit into 740 1 times, resulting in a remainder of 338.
The number 1 becomes the next digit in our result. 
Result so far: 127881.23631
Subtract 402 from 740 to get 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Advancing to step 14:
When dividing 3380 by 402, we get 8 with a remainder of 164.
Put 8 as the next digit of the answer. 
Result so far: 127881.236318
If we subtract 3216 from 3380, we get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Step 15:
1640 divided by 402 is 4 with a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 127881.2363184
The remainder is 32 after subtracting 1608 from 1640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 16:
If we divide 320 by 402, we get 0 and a remainder of 320.
Put 0 as the next digit of the answer. 
Result so far: 127881.2363184
If we take 0 away from 320, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

In conclusion, the division gives 127881.2363184 with a balance of 3.2e-07.