We look at the division of 39989130 by 257 
We want to divide 39989130 by 257.

Going ahead to step 1:
257 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 257

Step 2:
257 goes into 39 0 times with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Bring next digit (9) of the dividend behind the 39 and repeat the process: 399 / 257

Moving on to step 3:
257 can be fit into 399 1 times, resulting in a remainder of 142.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 257 from 399 and we're left with 142.
Append the next digit (8) from the dividend to 142 and continue with: 1428 / 257

On to step 4:
If we divide 1428 by 257, we get 5 and a remainder of 143.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we subtract 1285 from 1428, we get 143.
Bring next digit (9) of the dividend behind the 143 and repeat the process: 1439 / 257

Going ahead to step 5:
1439 divided by 257 is 5 with a remainder of 154.
Put 5 as the next digit of the answer. 
Result so far: 155.0
The remainder is 154 after subtracting 1285 from 1439.
Fetch the next digit (1) from the dividend, attach it to 154 and continue: 1541 / 257

Going ahead to step 6:
The number 257 fits into 1541 5 times, leaving a remainder of 256.
Put 5 as the next digit of the answer. 
Result so far: 1555.0
If we take 1285 away from 1541, we end up with 256.
Grab the next digit (3) from the dividend, add it to 256, then carry on: 2563 / 257

Moving on to step 7:
If we divide 2563 by 257, we get 9 and a remainder of 250.
Put 9 as the next digit of the answer. 
Result so far: 15559.0
The remainder is 250 after subtracting 2313 from 2563.
Take the next digit (0) from the dividend and append it to 250, then repeat: 2500 / 257

Step 8:
When dividing 2500 by 257, we get 9 with a remainder of 187.
Write down 9 as next digit of the result. 
Result so far: 155599.0
Subtracting 2313 from 2500 leaves us with 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

On to step 9:
The number 257 fits into 1870 7 times, leaving a remainder of 71.
Write down 7 as next digit of the result. 
Result so far: 155599.7
Deduct 1799 from 1870 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Going ahead to step 10:
257 goes into 710 2 times with a remainder of 196.
Record the quotient 2 as the next digit in the result. 
Result so far: 155599.72
Deduct 514 from 710 and we're left with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Moving on to step 11:
1960 divided by 257 is 7 with a remainder of 161.
The number 7 becomes the next digit in our result. 
Result so far: 155599.727
The remainder is 161 after subtracting 1799 from 1960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Advancing to step 12:
If we divide 1610 by 257, we get 6 and a remainder of 68.
Write down 6 as next digit of the result. 
Result so far: 155599.7276
Deduct 1542 from 1610 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 13:
The number 257 fits into 680 2 times, leaving a remainder of 166.
The next digit of our result is 2. 
Result so far: 155599.72762
Subtract 514 from 680 to get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Going ahead to step 14:
If we divide 1660 by 257, we get 6 and a remainder of 118.
The next digit of our result is 6. 
Result so far: 155599.727626
Subtract 1542 from 1660 to get 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Going ahead to step 15:
1180 divided by 257 is 4 with a remainder of 152.
Record the quotient 4 as the next digit in the result. 
Result so far: 155599.7276264
Subtract 1028 from 1180 to get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

On to step 16:
257 can be fit into 1520 5 times, resulting in a remainder of 235.
Write down 5 as next digit of the result. 
Result so far: 155599.72762645
Subtracting 1285 from 1520 leaves us with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Our division results in 155599.72762645 with a remaining 2.35e-07.