We look at the division of 21178298 by 786 
Our goal is to divide 21178298 by 786.

Let's proceed to step 1:
The number 786 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 786

Going ahead to step 2:
When dividing 21 by 786, we get 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (1) from the dividend after 21, then repeat: 211 / 786

Going ahead to step 3:
The number 786 fits into 211 0 times, leaving a remainder of 211.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 211, we get 211.
Take the next digit (7) from the dividend and append it to 211, then repeat: 2117 / 786

Moving on to step 4:
If we divide 2117 by 786, we get 2 and a remainder of 545.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 1572 from 2117 and we're left with 545.
Append the next digit (8) from the dividend to 545 and continue with: 5458 / 786

Let's proceed to step 5:
786 goes into 5458 6 times with a remainder of 742.
Write down 6 as next digit of the result. 
Result so far: 26.0
If we take 4716 away from 5458, we end up with 742.
Include the next digit (2) from the dividend after 742, then repeat: 7422 / 786

Let's proceed to step 6:
7422 divided by 786 is 9 with a remainder of 348.
Use 9 as the next digit of our solution. 
Result so far: 269.0
Deduct 7074 from 7422 and we're left with 348.
Include the next digit (9) from the dividend after 348, then repeat: 3489 / 786

Going ahead to step 7:
When dividing 3489 by 786, we get 4 with a remainder of 345.
The number 4 becomes the next digit in our result. 
Result so far: 2694.0
Subtract 3144 from 3489 to get 345.
Grab the next digit (8) from the dividend, add it to 345, then carry on: 3458 / 786

Advancing to step 8:
When dividing 3458 by 786, we get 4 with a remainder of 314.
Put 4 as the next digit of the answer. 
Result so far: 26944.0
Subtract 3144 from 3458 to get 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Moving on to step 9:
3140 divided by 786 is 3 with a remainder of 782.
Put 3 as the next digit of the answer. 
Result so far: 26944.3
If we take 2358 away from 3140, we end up with 782.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7820, and continue the process.

Step 10:
When dividing 7820 by 786, we get 9 with a remainder of 746.
Use 9 as the next digit of our solution. 
Result so far: 26944.39
Subtracting 7074 from 7820 leaves us with 746.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7460, and continue the process.

Going ahead to step 11:
When dividing 7460 by 786, we get 9 with a remainder of 386.
Put 9 as the next digit of the answer. 
Result so far: 26944.399
Subtract 7074 from 7460 to get 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

After the division, we end up with 26944.399 and a remainder of 0.0386.