Let's divide 10429665 by 855
We're looking to find how many times 855 goes into 10429665.

Step 1:
855 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 855

Going ahead to step 2:
If we divide 10 by 855, we get 0 and a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 10 and we're left with 10.
Bring next digit (4) of the dividend behind the 10 and repeat the process: 104 / 855

Step 3:
104 divided by 855 is 0 with a remainder of 104.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 104, we end up with 104.
Fetch the next digit (2) from the dividend, attach it to 104 and continue: 1042 / 855

On to step 4:
If we divide 1042 by 855, we get 1 and a remainder of 187.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 855 from 1042, we get 187.
Grab the next digit (9) from the dividend, add it to 187, then carry on: 1879 / 855

Advancing to step 5:
855 goes into 1879 2 times with a remainder of 169.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 169 after subtracting 1710 from 1879.
Take the next digit (6) from the dividend and append it to 169, then repeat: 1696 / 855

Advancing to step 6:
855 goes into 1696 1 times with a remainder of 841.
Put 1 as the next digit of the answer. 
Result so far: 121.0
Subtract 855 from 1696 to get 841.
Include the next digit (6) from the dividend after 841, then repeat: 8416 / 855

Moving on to step 7:
The number 855 fits into 8416 9 times, leaving a remainder of 721.
The number 9 becomes the next digit in our result. 
Result so far: 1219.0
If we take 7695 away from 8416, we end up with 721.
Grab the next digit (5) from the dividend, add it to 721, then carry on: 7215 / 855

Let's proceed to step 8:
7215 divided by 855 is 8 with a remainder of 375.
Write down 8 as next digit of the result. 
Result so far: 12198.0
If we subtract 6840 from 7215, we get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Advancing to step 9:
The number 855 fits into 3750 4 times, leaving a remainder of 330.
The next digit of our result is 4. 
Result so far: 12198.4
Subtract 3420 from 3750 to get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Advancing to step 10:
3300 divided by 855 is 3 with a remainder of 735.
The next digit of our result is 3. 
Result so far: 12198.43
If we take 2565 away from 3300, we end up with 735.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7350, and continue the process.

Step 11:
7350 divided by 855 is 8 with a remainder of 510.
Use 8 as the next digit of our solution. 
Result so far: 12198.438
Subtract 6840 from 7350 to get 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Moving on to step 12:
5100 divided by 855 is 5 with a remainder of 825.
Record the quotient 5 as the next digit in the result. 
Result so far: 12198.4385
If we subtract 4275 from 5100, we get 825.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8250, and continue the process.

Step 13:
855 goes into 8250 9 times with a remainder of 555.
The next digit of our result is 9. 
Result so far: 12198.43859
Deduct 7695 from 8250 and we're left with 555.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5550, and continue the process.

On to step 14:
When dividing 5550 by 855, we get 6 with a remainder of 420.
The next digit of our result is 6. 
Result so far: 12198.438596
If we take 5130 away from 5550, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Let's proceed to step 15:
4200 divided by 855 is 4 with a remainder of 780.
Put 4 as the next digit of the answer. 
Result so far: 12198.4385964
Subtracting 3420 from 4200 leaves us with 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

Advancing to step 16:
If we divide 7800 by 855, we get 9 and a remainder of 105.
The number 9 becomes the next digit in our result. 
Result so far: 12198.43859649
If we subtract 7695 from 7800, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

The final outcome is 12198.43859649, with a leftover of 1.05e-07.