We look at the division of 99490837 by 387 
Let's see how many times 387 fits into 99490837.

Step 1:
When dividing 9 by 387, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 387

Advancing to step 2:
If we divide 99 by 387, we get 0 and a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Grab the next digit (4) from the dividend, add it to 99, then carry on: 994 / 387

On to step 3:
If we divide 994 by 387, we get 2 and a remainder of 220.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 774 from 994 to get 220.
Grab the next digit (9) from the dividend, add it to 220, then carry on: 2209 / 387

Advancing to step 4:
387 goes into 2209 5 times with a remainder of 274.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
Subtracting 1935 from 2209 leaves us with 274.
Grab the next digit (0) from the dividend, add it to 274, then carry on: 2740 / 387

Advancing to step 5:
If we divide 2740 by 387, we get 7 and a remainder of 31.
The number 7 becomes the next digit in our result. 
Result so far: 257.0
If we take 2709 away from 2740, we end up with 31.
Grab the next digit (8) from the dividend, add it to 31, then carry on: 318 / 387

Let's proceed to step 6:
387 can be fit into 318 0 times, resulting in a remainder of 318.
Record the quotient 0 as the next digit in the result. 
Result so far: 2570.0
Subtract 0 from 318 to get 318.
Grab the next digit (3) from the dividend, add it to 318, then carry on: 3183 / 387

Going ahead to step 7:
If we divide 3183 by 387, we get 8 and a remainder of 87.
Record the quotient 8 as the next digit in the result. 
Result so far: 25708.0
Subtract 3096 from 3183 to get 87.
Take the next digit (7) from the dividend and append it to 87, then repeat: 877 / 387

Step 8:
877 divided by 387 is 2 with a remainder of 103.
Use 2 as the next digit of our solution. 
Result so far: 257082.0
Subtracting 774 from 877 leaves us with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Going ahead to step 9:
If we divide 1030 by 387, we get 2 and a remainder of 256.
The number 2 becomes the next digit in our result. 
Result so far: 257082.2
If we take 774 away from 1030, we end up with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Going ahead to step 10:
The number 387 fits into 2560 6 times, leaving a remainder of 238.
Write down 6 as next digit of the result. 
Result so far: 257082.26
Deduct 2322 from 2560 and we're left with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Going ahead to step 11:
387 can be fit into 2380 6 times, resulting in a remainder of 58.
Write down 6 as next digit of the result. 
Result so far: 257082.266
Subtract 2322 from 2380 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The final outcome is 257082.266, with a leftover of 0.0058.