12870357 ÷ 432 
We're looking to find how many times 432 goes into 12870357.

Moving on to step 1:
1 divided by 432 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 432

Moving on to step 2:
432 can be fit into 12 0 times, resulting in a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 432

Moving on to step 3:
When dividing 128 by 432, we get 0 with a remainder of 128.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 128 after subtracting 0 from 128.
Fetch the next digit (7) from the dividend, attach it to 128 and continue: 1287 / 432

Going ahead to step 4:
432 can be fit into 1287 2 times, resulting in a remainder of 423.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 864 away from 1287, we end up with 423.
Grab the next digit (0) from the dividend, add it to 423, then carry on: 4230 / 432

Moving on to step 5:
If we divide 4230 by 432, we get 9 and a remainder of 342.
Write down 9 as next digit of the result. 
Result so far: 29.0
If we take 3888 away from 4230, we end up with 342.
Grab the next digit (3) from the dividend, add it to 342, then carry on: 3423 / 432

Moving on to step 6:
3423 divided by 432 is 7 with a remainder of 399.
The number 7 becomes the next digit in our result. 
Result so far: 297.0
Subtract 3024 from 3423 to get 399.
Bring next digit (5) of the dividend behind the 399 and repeat the process: 3995 / 432

Let's proceed to step 7:
432 goes into 3995 9 times with a remainder of 107.
Put 9 as the next digit of the answer. 
Result so far: 2979.0
If we take 3888 away from 3995, we end up with 107.
Bring next digit (7) of the dividend behind the 107 and repeat the process: 1077 / 432

Going ahead to step 8:
The number 432 fits into 1077 2 times, leaving a remainder of 213.
Record the quotient 2 as the next digit in the result. 
Result so far: 29792.0
If we subtract 864 from 1077, we get 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Let's proceed to step 9:
The number 432 fits into 2130 4 times, leaving a remainder of 402.
Use 4 as the next digit of our solution. 
Result so far: 29792.4
Subtract 1728 from 2130 to get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Step 10:
The number 432 fits into 4020 9 times, leaving a remainder of 132.
Use 9 as the next digit of our solution. 
Result so far: 29792.49
Subtracting 3888 from 4020 leaves us with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Let's proceed to step 11:
The number 432 fits into 1320 3 times, leaving a remainder of 24.
The number 3 becomes the next digit in our result. 
Result so far: 29792.493
Deduct 1296 from 1320 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 12:
432 can be fit into 240 0 times, resulting in a remainder of 240.
The number 0 becomes the next digit in our result. 
Result so far: 29792.493
Subtracting 0 from 240 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 13:
If we divide 2400 by 432, we get 5 and a remainder of 240.
The number 5 becomes the next digit in our result. 
Result so far: 29792.49305
Deduct 2160 from 2400 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 14:
432 can be fit into 2400 5 times, resulting in a remainder of 240.
Use 5 as the next digit of our solution. 
Result so far: 29792.493055
The remainder is 240 after subtracting 2160 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

After the division, we end up with 29792.493055 and a remainder of 2.4e-05.