We're dividing 51757957 by 139 
Let's see how many times 139 fits into 51757957.

Step 1:
139 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 139

On to step 2:
When dividing 51 by 139, we get 0 with a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Grab the next digit (7) from the dividend, add it to 51, then carry on: 517 / 139

Step 3:
139 can be fit into 517 3 times, resulting in a remainder of 100.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 417 from 517 leaves us with 100.
Grab the next digit (5) from the dividend, add it to 100, then carry on: 1005 / 139

Advancing to step 4:
139 can be fit into 1005 7 times, resulting in a remainder of 32.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
Subtract 973 from 1005 to get 32.
Bring next digit (7) of the dividend behind the 32 and repeat the process: 327 / 139

On to step 5:
If we divide 327 by 139, we get 2 and a remainder of 49.
Record the quotient 2 as the next digit in the result. 
Result so far: 372.0
Deduct 278 from 327 and we're left with 49.
Take the next digit (9) from the dividend and append it to 49, then repeat: 499 / 139

Let's proceed to step 6:
139 can be fit into 499 3 times, resulting in a remainder of 82.
Record the quotient 3 as the next digit in the result. 
Result so far: 3723.0
Subtract 417 from 499 to get 82.
Grab the next digit (5) from the dividend, add it to 82, then carry on: 825 / 139

Advancing to step 7:
When dividing 825 by 139, we get 5 with a remainder of 130.
Use 5 as the next digit of our solution. 
Result so far: 37235.0
Subtracting 695 from 825 leaves us with 130.
Grab the next digit (7) from the dividend, add it to 130, then carry on: 1307 / 139

Step 8:
If we divide 1307 by 139, we get 9 and a remainder of 56.
Use 9 as the next digit of our solution. 
Result so far: 372359.0
If we subtract 1251 from 1307, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 9:
139 can be fit into 560 4 times, resulting in a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 372359.4
Subtract 556 from 560 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
139 can be fit into 40 0 times, resulting in a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 372359.4
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
The number 139 fits into 400 2 times, leaving a remainder of 122.
Put 2 as the next digit of the answer. 
Result so far: 372359.402
The remainder is 122 after subtracting 278 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Advancing to step 12:
1220 divided by 139 is 8 with a remainder of 108.
Write down 8 as next digit of the result. 
Result so far: 372359.4028
Subtract 1112 from 1220 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Step 13:
If we divide 1080 by 139, we get 7 and a remainder of 107.
The next digit of our result is 7. 
Result so far: 372359.40287
If we subtract 973 from 1080, we get 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Step 14:
139 can be fit into 1070 7 times, resulting in a remainder of 97.
The number 7 becomes the next digit in our result. 
Result so far: 372359.402877
If we take 973 away from 1070, we end up with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

After the division, we end up with 372359.402877 and a remainder of 9.7e-06.