45129493 ÷ 429 
Our goal is to divide 45129493 by 429.

Step 1:
The number 429 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
Subtract 0 from 4 to get 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 429

On to step 2:
The number 429 fits into 45 0 times, leaving a remainder of 45.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Grab the next digit (1) from the dividend, add it to 45, then carry on: 451 / 429

On to step 3:
If we divide 451 by 429, we get 1 and a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 429 from 451 leaves us with 22.
Bring next digit (2) of the dividend behind the 22 and repeat the process: 222 / 429

Going ahead to step 4:
When dividing 222 by 429, we get 0 with a remainder of 222.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
The remainder is 222 after subtracting 0 from 222.
Bring next digit (9) of the dividend behind the 222 and repeat the process: 2229 / 429

Advancing to step 5:
429 goes into 2229 5 times with a remainder of 84.
Record the quotient 5 as the next digit in the result. 
Result so far: 105.0
If we take 2145 away from 2229, we end up with 84.
Append the next digit (4) from the dividend to 84 and continue with: 844 / 429

Going ahead to step 6:
429 can be fit into 844 1 times, resulting in a remainder of 415.
Record the quotient 1 as the next digit in the result. 
Result so far: 1051.0
The remainder is 415 after subtracting 429 from 844.
Fetch the next digit (9) from the dividend, attach it to 415 and continue: 4159 / 429

Moving on to step 7:
The number 429 fits into 4159 9 times, leaving a remainder of 298.
Write down 9 as next digit of the result. 
Result so far: 10519.0
Subtracting 3861 from 4159 leaves us with 298.
Include the next digit (3) from the dividend after 298, then repeat: 2983 / 429

Let's proceed to step 8:
429 goes into 2983 6 times with a remainder of 409.
The number 6 becomes the next digit in our result. 
Result so far: 105196.0
The remainder is 409 after subtracting 2574 from 2983.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4090, and continue the process.

Let's proceed to step 9:
When dividing 4090 by 429, we get 9 with a remainder of 229.
Record the quotient 9 as the next digit in the result. 
Result so far: 105196.9
If we subtract 3861 from 4090, we get 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Step 10:
2290 divided by 429 is 5 with a remainder of 145.
The number 5 becomes the next digit in our result. 
Result so far: 105196.95
Subtract 2145 from 2290 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Advancing to step 11:
If we divide 1450 by 429, we get 3 and a remainder of 163.
The number 3 becomes the next digit in our result. 
Result so far: 105196.953
If we subtract 1287 from 1450, we get 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Step 12:
429 goes into 1630 3 times with a remainder of 343.
Write down 3 as next digit of the result. 
Result so far: 105196.9533
If we take 1287 away from 1630, we end up with 343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

In conclusion, the division gives 105196.9533 with a balance of 0.00343.