43129762 divided by 603 
We want to divide 43129762 by 603.

Moving on to step 1:
The number 603 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 603

Step 2:
When dividing 43 by 603, we get 0 with a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 43, we end up with 43.
Grab the next digit (1) from the dividend, add it to 43, then carry on: 431 / 603

Let's proceed to step 3:
603 goes into 431 0 times with a remainder of 431.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 431 and we're left with 431.
Grab the next digit (2) from the dividend, add it to 431, then carry on: 4312 / 603

On to step 4:
If we divide 4312 by 603, we get 7 and a remainder of 91.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 4221 away from 4312, we end up with 91.
Bring next digit (9) of the dividend behind the 91 and repeat the process: 919 / 603

Moving on to step 5:
The number 603 fits into 919 1 times, leaving a remainder of 316.
The next digit of our result is 1. 
Result so far: 71.0
The remainder is 316 after subtracting 603 from 919.
Fetch the next digit (7) from the dividend, attach it to 316 and continue: 3167 / 603

Advancing to step 6:
3167 divided by 603 is 5 with a remainder of 152.
The number 5 becomes the next digit in our result. 
Result so far: 715.0
If we subtract 3015 from 3167, we get 152.
Append the next digit (6) from the dividend to 152 and continue with: 1526 / 603

On to step 7:
If we divide 1526 by 603, we get 2 and a remainder of 320.
The next digit of our result is 2. 
Result so far: 7152.0
Subtract 1206 from 1526 to get 320.
Grab the next digit (2) from the dividend, add it to 320, then carry on: 3202 / 603

Step 8:
603 can be fit into 3202 5 times, resulting in a remainder of 187.
Put 5 as the next digit of the answer. 
Result so far: 71525.0
Subtracting 3015 from 3202 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:
If we divide 1870 by 603, we get 3 and a remainder of 61.
Write down 3 as next digit of the result. 
Result so far: 71525.3
Subtracting 1809 from 1870 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 10:
603 goes into 610 1 times with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 71525.31
If we take 603 away from 610, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 11:
70 divided by 603 is 0 with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 71525.31
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 12:
603 goes into 700 1 times with a remainder of 97.
The number 1 becomes the next digit in our result. 
Result so far: 71525.3101
Deduct 603 from 700 and we're left with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Moving on to step 13:
603 can be fit into 970 1 times, resulting in a remainder of 367.
Write down 1 as next digit of the result. 
Result so far: 71525.31011
The remainder is 367 after subtracting 603 from 970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

The final outcome is 71525.31011, with a leftover of 0.000367.