Let's divide 21662739 by 861
We're looking to find how many times 861 goes into 21662739.

Step 1:
If we divide 2 by 861, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 861

Advancing to step 2:
If we divide 21 by 861, 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.
Include the next digit (6) from the dividend after 21, then repeat: 216 / 861

On to step 3:
861 goes into 216 0 times with a remainder of 216.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 216, we get 216.
Take the next digit (6) from the dividend and append it to 216, then repeat: 2166 / 861

On to step 4:
861 can be fit into 2166 2 times, resulting in a remainder of 444.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 444 after subtracting 1722 from 2166.
Append the next digit (2) from the dividend to 444 and continue with: 4442 / 861

Moving on to step 5:
861 can be fit into 4442 5 times, resulting in a remainder of 137.
Write down 5 as next digit of the result. 
Result so far: 25.0
If we take 4305 away from 4442, we end up with 137.
Take the next digit (7) from the dividend and append it to 137, then repeat: 1377 / 861

On to step 6:
861 goes into 1377 1 times with a remainder of 516.
Put 1 as the next digit of the answer. 
Result so far: 251.0
The remainder is 516 after subtracting 861 from 1377.
Take the next digit (3) from the dividend and append it to 516, then repeat: 5163 / 861

Advancing to step 7:
If we divide 5163 by 861, we get 5 and a remainder of 858.
Use 5 as the next digit of our solution. 
Result so far: 2515.0
Subtract 4305 from 5163 to get 858.
Include the next digit (9) from the dividend after 858, then repeat: 8589 / 861

Moving on to step 8:
861 can be fit into 8589 9 times, resulting in a remainder of 840.
Put 9 as the next digit of the answer. 
Result so far: 25159.0
If we take 7749 away from 8589, we end up with 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

Let's proceed to step 9:
If we divide 8400 by 861, we get 9 and a remainder of 651.
Write down 9 as next digit of the result. 
Result so far: 25159.9
Deduct 7749 from 8400 and we're left with 651.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6510, and continue the process.

Moving on to step 10:
The number 861 fits into 6510 7 times, leaving a remainder of 483.
Put 7 as the next digit of the answer. 
Result so far: 25159.97
Subtract 6027 from 6510 to get 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

Advancing to step 11:
If we divide 4830 by 861, we get 5 and a remainder of 525.
Put 5 as the next digit of the answer. 
Result so far: 25159.975
If we subtract 4305 from 4830, we get 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Step 12:
The number 861 fits into 5250 6 times, leaving a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 25159.9756
Subtract 5166 from 5250 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 13:
840 divided by 861 is 0 with a remainder of 840.
The number 0 becomes the next digit in our result. 
Result so far: 25159.9756
Deduct 0 from 840 and we're left with 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

Step 14:
If we divide 8400 by 861, we get 9 and a remainder of 651.
Record the quotient 9 as the next digit in the result. 
Result so far: 25159.975609
Subtract 7749 from 8400 to get 651.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6510, and continue the process.

Advancing to step 15:
When dividing 6510 by 861, we get 7 with a remainder of 483.
Put 7 as the next digit of the answer. 
Result so far: 25159.9756097
Subtract 6027 from 6510 to get 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

Moving on to step 16:
The number 861 fits into 4830 5 times, leaving a remainder of 525.
The number 5 becomes the next digit in our result. 
Result so far: 25159.97560975
Deduct 4305 from 4830 and we're left with 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

In conclusion, the division gives 25159.97560975 with a balance of 5.25e-07.