21770173 ÷ 31 
Let's see how many times 31 fits into 21770173.

Step 1:
When dividing 2 by 31, 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 take 0 away from 2, we end up with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 31

Moving on to step 2:
21 divided by 31 is 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Take the next digit (7) from the dividend and append it to 21, then repeat: 217 / 31

Step 3:
The number 31 fits into 217 7 times, leaving a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 0 after subtracting 217 from 217.
Fetch the next digit (7) from the dividend, attach it to 0 and continue: 7 / 31

Going ahead to step 4:
When dividing 7 by 31, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 70.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 31

Step 5:
If we divide 70 by 31, we get 2 and a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 702.0
The remainder is 8 after subtracting 62 from 70.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 31

Moving on to step 6:
31 goes into 81 2 times with a remainder of 19.
Write down 2 as next digit of the result. 
Result so far: 7022.0
If we subtract 62 from 81, we get 19.
Fetch the next digit (7) from the dividend, attach it to 19 and continue: 197 / 31

Let's proceed to step 7:
When dividing 197 by 31, we get 6 with a remainder of 11.
Use 6 as the next digit of our solution. 
Result so far: 70226.0
Subtracting 186 from 197 leaves us with 11.
Grab the next digit (3) from the dividend, add it to 11, then carry on: 113 / 31

Moving on to step 8:
The number 31 fits into 113 3 times, leaving a remainder of 20.
Put 3 as the next digit of the answer. 
Result so far: 702263.0
Subtracting 93 from 113 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
If we divide 200 by 31, we get 6 and a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 702263.6
If we subtract 186 from 200, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 10:
The number 31 fits into 140 4 times, leaving a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 702263.64
If we subtract 124 from 140, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 11:
31 can be fit into 160 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 702263.645
If we subtract 155 from 160, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 12:
50 divided by 31 is 1 with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 702263.6451
If we take 31 away from 50, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 13:
The number 31 fits into 190 6 times, leaving a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 702263.64516
Subtract 186 from 190 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 14:
The number 31 fits into 40 1 times, leaving a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 702263.645161
Subtracting 31 from 40 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 15:
When dividing 90 by 31, we get 2 with a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 702263.6451612
Deduct 62 from 90 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 16:
The number 31 fits into 280 9 times, leaving a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 702263.64516129
Deduct 279 from 280 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Our division results in 702263.64516129 with a remaining 1e-09.