Let's divide 31649465 by 603
Our goal is to divide 31649465 by 603.

On to step 1:
The number 603 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 603

Step 2:
The number 603 fits into 31 0 times, leaving a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 31 to get 31.
Append the next digit (6) from the dividend to 31 and continue with: 316 / 603

On to step 3:
316 divided by 603 is 0 with a remainder of 316.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 316, we get 316.
Fetch the next digit (4) from the dividend, attach it to 316 and continue: 3164 / 603

Step 4:
3164 divided by 603 is 5 with a remainder of 149.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 3015 away from 3164, we end up with 149.
Take the next digit (9) from the dividend and append it to 149, then repeat: 1499 / 603

Advancing to step 5:
If we divide 1499 by 603, we get 2 and a remainder of 293.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
Deduct 1206 from 1499 and we're left with 293.
Append the next digit (4) from the dividend to 293 and continue with: 2934 / 603

On to step 6:
If we divide 2934 by 603, we get 4 and a remainder of 522.
Use 4 as the next digit of our solution. 
Result so far: 524.0
Subtracting 2412 from 2934 leaves us with 522.
Fetch the next digit (6) from the dividend, attach it to 522 and continue: 5226 / 603

Moving on to step 7:
5226 divided by 603 is 8 with a remainder of 402.
Use 8 as the next digit of our solution. 
Result so far: 5248.0
Subtracting 4824 from 5226 leaves us with 402.
Append the next digit (5) from the dividend to 402 and continue with: 4025 / 603

On to step 8:
4025 divided by 603 is 6 with a remainder of 407.
Write down 6 as next digit of the result. 
Result so far: 52486.0
Subtract 3618 from 4025 to get 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

Going ahead to step 9:
If we divide 4070 by 603, we get 6 and a remainder of 452.
The number 6 becomes the next digit in our result. 
Result so far: 52486.6
If we subtract 3618 from 4070, we get 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Going ahead to step 10:
When dividing 4520 by 603, we get 7 with a remainder of 299.
Record the quotient 7 as the next digit in the result. 
Result so far: 52486.67
Subtracting 4221 from 4520 leaves us with 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Step 11:
603 goes into 2990 4 times with a remainder of 578.
Put 4 as the next digit of the answer. 
Result so far: 52486.674
Subtract 2412 from 2990 to get 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Going ahead to step 12:
The number 603 fits into 5780 9 times, leaving a remainder of 353.
Use 9 as the next digit of our solution. 
Result so far: 52486.6749
Subtract 5427 from 5780 to get 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Step 13:
The number 603 fits into 3530 5 times, leaving a remainder of 515.
Put 5 as the next digit of the answer. 
Result so far: 52486.67495
Subtract 3015 from 3530 to get 515.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Let's proceed to step 14:
603 goes into 5150 8 times with a remainder of 326.
Use 8 as the next digit of our solution. 
Result so far: 52486.674958
If we subtract 4824 from 5150, we get 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Moving on to step 15:
3260 divided by 603 is 5 with a remainder of 245.
The number 5 becomes the next digit in our result. 
Result so far: 52486.6749585
If we subtract 3015 from 3260, we get 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Step 16:
603 can be fit into 2450 4 times, resulting in a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 52486.67495854
Subtract 2412 from 2450 to 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.

The final result is 52486.67495854 with a remainder of 3.8e-08.