45614303 ÷ 603 
Let's see how many times 603 fits into 45614303.

On to step 1:
When dividing 4 by 603, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 603

Moving on to step 2:
603 goes into 45 0 times with a remainder of 45.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Take the next digit (6) from the dividend and append it to 45, then repeat: 456 / 603

On to step 3:
If we divide 456 by 603, we get 0 and a remainder of 456.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 456 after subtracting 0 from 456.
Append the next digit (1) from the dividend to 456 and continue with: 4561 / 603

Going ahead to step 4:
When dividing 4561 by 603, we get 7 with a remainder of 340.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 4221 from 4561 to get 340.
Fetch the next digit (4) from the dividend, attach it to 340 and continue: 3404 / 603

On to step 5:
603 can be fit into 3404 5 times, resulting in a remainder of 389.
Write down 5 as next digit of the result. 
Result so far: 75.0
Subtracting 3015 from 3404 leaves us with 389.
Include the next digit (3) from the dividend after 389, then repeat: 3893 / 603

Going ahead to step 6:
The number 603 fits into 3893 6 times, leaving a remainder of 275.
Put 6 as the next digit of the answer. 
Result so far: 756.0
If we take 3618 away from 3893, we end up with 275.
Bring next digit (0) of the dividend behind the 275 and repeat the process: 2750 / 603

On to step 7:
When dividing 2750 by 603, we get 4 with a remainder of 338.
Record the quotient 4 as the next digit in the result. 
Result so far: 7564.0
Subtracting 2412 from 2750 leaves us with 338.
Grab the next digit (3) from the dividend, add it to 338, then carry on: 3383 / 603

Advancing to step 8:
When dividing 3383 by 603, we get 5 with a remainder of 368.
Record the quotient 5 as the next digit in the result. 
Result so far: 75645.0
The remainder is 368 after subtracting 3015 from 3383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Step 9:
603 can be fit into 3680 6 times, resulting in a remainder of 62.
The number 6 becomes the next digit in our result. 
Result so far: 75645.6
Subtract 3618 from 3680 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 10:
603 goes into 620 1 times with a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 75645.61
If we take 603 away from 620, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 11:
170 divided by 603 is 0 with a remainder of 170.
Put 0 as the next digit of the answer. 
Result so far: 75645.61
Subtract 0 from 170 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Moving on to step 12:
If we divide 1700 by 603, we get 2 and a remainder of 494.
Record the quotient 2 as the next digit in the result. 
Result so far: 75645.6102
Subtracting 1206 from 1700 leaves us with 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Going ahead to step 13:
4940 divided by 603 is 8 with a remainder of 116.
Put 8 as the next digit of the answer. 
Result so far: 75645.61028
If we take 4824 away from 4940, we end up with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Let's proceed to step 14:
603 goes into 1160 1 times with a remainder of 557.
Put 1 as the next digit of the answer. 
Result so far: 75645.610281
Deduct 603 from 1160 and we're left with 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

On to step 15:
603 goes into 5570 9 times with a remainder of 143.
The number 9 becomes the next digit in our result. 
Result so far: 75645.6102819
Subtract 5427 from 5570 to get 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Going ahead to step 16:
If we divide 1430 by 603, we get 2 and a remainder of 224.
The number 2 becomes the next digit in our result. 
Result so far: 75645.61028192
Deduct 1206 from 1430 and we're left with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

The final outcome is 75645.61028192, with a leftover of 2.24e-07.