We look at the division of 21710687 by 161 
We're looking to find how many times 161 goes into 21710687.

Let's proceed to step 1:
When dividing 2 by 161, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 161

Let's proceed to step 2:
21 divided by 161 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Bring next digit (7) of the dividend behind the 21 and repeat the process: 217 / 161

Moving on to step 3:
161 goes into 217 1 times with a remainder of 56.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 161 away from 217, we end up with 56.
Append the next digit (1) from the dividend to 56 and continue with: 561 / 161

Moving on to step 4:
The number 161 fits into 561 3 times, leaving a remainder of 78.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 483 from 561 to get 78.
Take the next digit (0) from the dividend and append it to 78, then repeat: 780 / 161

Moving on to step 5:
161 can be fit into 780 4 times, resulting in a remainder of 136.
The next digit of our result is 4. 
Result so far: 134.0
The remainder is 136 after subtracting 644 from 780.
Grab the next digit (6) from the dividend, add it to 136, then carry on: 1366 / 161

Going ahead to step 6:
The number 161 fits into 1366 8 times, leaving a remainder of 78.
The number 8 becomes the next digit in our result. 
Result so far: 1348.0
The remainder is 78 after subtracting 1288 from 1366.
Grab the next digit (8) from the dividend, add it to 78, then carry on: 788 / 161

Let's proceed to step 7:
788 divided by 161 is 4 with a remainder of 144.
Put 4 as the next digit of the answer. 
Result so far: 13484.0
Subtract 644 from 788 to get 144.
Fetch the next digit (7) from the dividend, attach it to 144 and continue: 1447 / 161

Let's proceed to step 8:
161 can be fit into 1447 8 times, resulting in a remainder of 159.
Use 8 as the next digit of our solution. 
Result so far: 134848.0
The remainder is 159 after subtracting 1288 from 1447.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

On to step 9:
1590 divided by 161 is 9 with a remainder of 141.
Use 9 as the next digit of our solution. 
Result so far: 134848.9
The remainder is 141 after subtracting 1449 from 1590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Advancing to step 10:
The number 161 fits into 1410 8 times, leaving a remainder of 122.
The next digit of our result is 8. 
Result so far: 134848.98
If we take 1288 away from 1410, we end up with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Step 11:
161 can be fit into 1220 7 times, resulting in a remainder of 93.
The next digit of our result is 7. 
Result so far: 134848.987
Subtract 1127 from 1220 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.

Advancing to step 12:
When dividing 930 by 161, we get 5 with a remainder of 125.
Write down 5 as next digit of the result. 
Result so far: 134848.9875
If we take 805 away from 930, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Step 13:
If we divide 1250 by 161, we get 7 and a remainder of 123.
Write down 7 as next digit of the result. 
Result so far: 134848.98757
Subtract 1127 from 1250 to get 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

On to step 14:
When dividing 1230 by 161, we get 7 with a remainder of 103.
Record the quotient 7 as the next digit in the result. 
Result so far: 134848.987577
Subtract 1127 from 1230 to get 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

In conclusion, the division gives 134848.987577 with a balance of 1.03e-05.