We look at the division of 43257122 by 357 
We want to divide 43257122 by 357.

Advancing to step 1:
The number 357 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 357

On to step 2:
357 can be fit into 43 0 times, resulting in a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 43 leaves us with 43.
Append the next digit (2) from the dividend to 43 and continue with: 432 / 357

On to step 3:
357 goes into 432 1 times with a remainder of 75.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 357 from 432 leaves us with 75.
Bring next digit (5) of the dividend behind the 75 and repeat the process: 755 / 357

On to step 4:
The number 357 fits into 755 2 times, leaving a remainder of 41.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 714 from 755 leaves us with 41.
Append the next digit (7) from the dividend to 41 and continue with: 417 / 357

Let's proceed to step 5:
The number 357 fits into 417 1 times, leaving a remainder of 60.
The next digit of our result is 1. 
Result so far: 121.0
Deduct 357 from 417 and we're left with 60.
Take the next digit (1) from the dividend and append it to 60, then repeat: 601 / 357

Going ahead to step 6:
The number 357 fits into 601 1 times, leaving a remainder of 244.
The number 1 becomes the next digit in our result. 
Result so far: 1211.0
If we take 357 away from 601, we end up with 244.
Include the next digit (2) from the dividend after 244, then repeat: 2442 / 357

Let's proceed to step 7:
The number 357 fits into 2442 6 times, leaving a remainder of 300.
Put 6 as the next digit of the answer. 
Result so far: 12116.0
The remainder is 300 after subtracting 2142 from 2442.
Fetch the next digit (2) from the dividend, attach it to 300 and continue: 3002 / 357

On to step 8:
If we divide 3002 by 357, we get 8 and a remainder of 146.
Put 8 as the next digit of the answer. 
Result so far: 121168.0
Subtracting 2856 from 3002 leaves us with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Step 9:
The number 357 fits into 1460 4 times, leaving a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 121168.4
Subtracting 1428 from 1460 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 10:
The number 357 fits into 320 0 times, leaving a remainder of 320.
The number 0 becomes the next digit in our result. 
Result so far: 121168.4
If we subtract 0 from 320, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 11:
357 can be fit into 3200 8 times, resulting in a remainder of 344.
Put 8 as the next digit of the answer. 
Result so far: 121168.408
Subtracting 2856 from 3200 leaves us with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Advancing to step 12:
357 goes into 3440 9 times with a remainder of 227.
Record the quotient 9 as the next digit in the result. 
Result so far: 121168.4089
If we subtract 3213 from 3440, we get 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Going ahead to step 13:
2270 divided by 357 is 6 with a remainder of 128.
The next digit of our result is 6. 
Result so far: 121168.40896
If we subtract 2142 from 2270, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Advancing to step 14:
357 can be fit into 1280 3 times, resulting in a remainder of 209.
The next digit of our result is 3. 
Result so far: 121168.408963
Subtract 1071 from 1280 to get 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Advancing to step 15:
When dividing 2090 by 357, we get 5 with a remainder of 305.
Record the quotient 5 as the next digit in the result. 
Result so far: 121168.4089635
If we take 1785 away from 2090, we end up with 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Moving on to step 16:
3050 divided by 357 is 8 with a remainder of 194.
Use 8 as the next digit of our solution. 
Result so far: 121168.40896358
If we take 2856 away from 3050, we end up with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

After the division, we end up with 121168.40896358 and a remainder of 1.94e-07.