21276853 divided by 173 
We're looking to find how many times 173 goes into 21276853.

Moving on to step 1:
2 divided by 173 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 173

On to step 2:
If we divide 21 by 173, we get 0 and a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Fetch the next digit (2) from the dividend, attach it to 21 and continue: 212 / 173

Moving on to step 3:
173 goes into 212 1 times with a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 173 from 212 leaves us with 39.
Bring next digit (7) of the dividend behind the 39 and repeat the process: 397 / 173

Step 4:
If we divide 397 by 173, we get 2 and a remainder of 51.
The next digit of our result is 2. 
Result so far: 12.0
The remainder is 51 after subtracting 346 from 397.
Append the next digit (6) from the dividend to 51 and continue with: 516 / 173

Step 5:
516 divided by 173 is 2 with a remainder of 170.
The next digit of our result is 2. 
Result so far: 122.0
If we take 346 away from 516, we end up with 170.
Bring next digit (8) of the dividend behind the 170 and repeat the process: 1708 / 173

Moving on to step 6:
When dividing 1708 by 173, we get 9 with a remainder of 151.
The number 9 becomes the next digit in our result. 
Result so far: 1229.0
Subtracting 1557 from 1708 leaves us with 151.
Append the next digit (5) from the dividend to 151 and continue with: 1515 / 173

Moving on to step 7:
When dividing 1515 by 173, we get 8 with a remainder of 131.
The next digit of our result is 8. 
Result so far: 12298.0
Subtracting 1384 from 1515 leaves us with 131.
Take the next digit (3) from the dividend and append it to 131, then repeat: 1313 / 173

On to step 8:
When dividing 1313 by 173, we get 7 with a remainder of 102.
Use 7 as the next digit of our solution. 
Result so far: 122987.0
Deduct 1211 from 1313 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Moving on to step 9:
When dividing 1020 by 173, we get 5 with a remainder of 155.
Record the quotient 5 as the next digit in the result. 
Result so far: 122987.5
Deduct 865 from 1020 and we're left with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

On to step 10:
If we divide 1550 by 173, we get 8 and a remainder of 166.
The number 8 becomes the next digit in our result. 
Result so far: 122987.58
The remainder is 166 after subtracting 1384 from 1550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Advancing to step 11:
173 goes into 1660 9 times with a remainder of 103.
Put 9 as the next digit of the answer. 
Result so far: 122987.589
Deduct 1557 from 1660 and we're left with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Let's proceed to step 12:
1030 divided by 173 is 5 with a remainder of 165.
The next digit of our result is 5. 
Result so far: 122987.5895
If we take 865 away from 1030, we end up with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Going ahead to step 13:
173 goes into 1650 9 times with a remainder of 93.
Record the quotient 9 as the next digit in the result. 
Result so far: 122987.58959
Subtract 1557 from 1650 to get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Going ahead to step 14:
930 divided by 173 is 5 with a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 122987.589595
Subtracting 865 from 930 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 15:
When dividing 650 by 173, we get 3 with a remainder of 131.
Record the quotient 3 as the next digit in the result. 
Result so far: 122987.5895953
The remainder is 131 after subtracting 519 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Step 16:
When dividing 1310 by 173, we get 7 with a remainder of 99.
The next digit of our result is 7. 
Result so far: 122987.58959537
Deduct 1211 from 1310 and we're left with 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

In conclusion, the division gives 122987.58959537 with a balance of 9.9e-08.