We look at the division of 78213657 by 353 
Let's see how many times 353 fits into 78213657.

Moving on to step 1:
When dividing 7 by 353, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 353

Advancing to step 2:
When dividing 78 by 353, we get 0 with a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Include the next digit (2) from the dividend after 78, then repeat: 782 / 353

Advancing to step 3:
If we divide 782 by 353, we get 2 and a remainder of 76.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 706 from 782 to get 76.
Append the next digit (1) from the dividend to 76 and continue with: 761 / 353

Step 4:
If we divide 761 by 353, we get 2 and a remainder of 55.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
If we subtract 706 from 761, we get 55.
Bring next digit (3) of the dividend behind the 55 and repeat the process: 553 / 353

Moving on to step 5:
The number 353 fits into 553 1 times, leaving a remainder of 200.
Write down 1 as next digit of the result. 
Result so far: 221.0
The remainder is 200 after subtracting 353 from 553.
Fetch the next digit (6) from the dividend, attach it to 200 and continue: 2006 / 353

Moving on to step 6:
The number 353 fits into 2006 5 times, leaving a remainder of 241.
Write down 5 as next digit of the result. 
Result so far: 2215.0
Subtract 1765 from 2006 to get 241.
Fetch the next digit (5) from the dividend, attach it to 241 and continue: 2415 / 353

Going ahead to step 7:
The number 353 fits into 2415 6 times, leaving a remainder of 297.
The number 6 becomes the next digit in our result. 
Result so far: 22156.0
If we take 2118 away from 2415, we end up with 297.
Fetch the next digit (7) from the dividend, attach it to 297 and continue: 2977 / 353

Moving on to step 8:
The number 353 fits into 2977 8 times, leaving a remainder of 153.
Put 8 as the next digit of the answer. 
Result so far: 221568.0
Subtract 2824 from 2977 to get 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Let's proceed to step 9:
If we divide 1530 by 353, we get 4 and a remainder of 118.
Put 4 as the next digit of the answer. 
Result so far: 221568.4
If we subtract 1412 from 1530, we get 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Advancing to step 10:
The number 353 fits into 1180 3 times, leaving a remainder of 121.
Use 3 as the next digit of our solution. 
Result so far: 221568.43
Deduct 1059 from 1180 and we're left with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Moving on to step 11:
If we divide 1210 by 353, we get 3 and a remainder of 151.
Use 3 as the next digit of our solution. 
Result so far: 221568.433
If we subtract 1059 from 1210, we get 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

The final result is 221568.433 with a remainder of 0.0151.