We divide 639689 by 49
Let's see how many times 49 fits into 639689.

Advancing to step 1:
If we divide 6 by 49, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 49

Going ahead to step 2:
49 can be fit into 63 1 times, resulting in a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 49 away from 63, we end up with 14.
Take the next digit (9) from the dividend and append it to 14, then repeat: 149 / 49

Let's proceed to step 3:
49 can be fit into 149 3 times, resulting in a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 13.0
Deduct 147 from 149 and we're left with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 49

Let's proceed to step 4:
The number 49 fits into 26 0 times, leaving a remainder of 26.
The next digit of our result is 0. 
Result so far: 130.0
Subtract 0 from 26 to get 26.
Include the next digit (8) from the dividend after 26, then repeat: 268 / 49

Let's proceed to step 5:
268 divided by 49 is 5 with a remainder of 23.
Put 5 as the next digit of the answer. 
Result so far: 1305.0
The remainder is 23 after subtracting 245 from 268.
Include the next digit (9) from the dividend after 23, then repeat: 239 / 49

Going ahead to step 6:
239 divided by 49 is 4 with a remainder of 43.
Put 4 as the next digit of the answer. 
Result so far: 13054.0
Subtracting 196 from 239 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 7:
The number 49 fits into 430 8 times, leaving a remainder of 38.
Put 8 as the next digit of the answer. 
Result so far: 13054.8
If we subtract 392 from 430, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 8:
380 divided by 49 is 7 with a remainder of 37.
Write down 7 as next digit of the result. 
Result so far: 13054.87
Subtracting 343 from 380 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 9:
The number 49 fits into 370 7 times, leaving a remainder of 27.
Record the quotient 7 as the next digit in the result. 
Result so far: 13054.877
If we take 343 away from 370, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

The final outcome is 13054.877, with a leftover of 0.0027.