Let's divide 31209972 by 609
We want to figure out the number of times 31209972 can be divided by 609.

Let's proceed to step 1:
When dividing 3 by 609, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 609

Let's proceed to step 2:
The number 609 fits into 31 0 times, leaving a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Bring next digit (2) of the dividend behind the 31 and repeat the process: 312 / 609

On to step 3:
609 can be fit into 312 0 times, resulting in a remainder of 312.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 312, we end up with 312.
Bring next digit (0) of the dividend behind the 312 and repeat the process: 3120 / 609

Step 4:
If we divide 3120 by 609, we get 5 and a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 3045 from 3120 leaves us with 75.
Bring next digit (9) of the dividend behind the 75 and repeat the process: 759 / 609

On to step 5:
609 can be fit into 759 1 times, resulting in a remainder of 150.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
The remainder is 150 after subtracting 609 from 759.
Fetch the next digit (9) from the dividend, attach it to 150 and continue: 1509 / 609

Going ahead to step 6:
The number 609 fits into 1509 2 times, leaving a remainder of 291.
Use 2 as the next digit of our solution. 
Result so far: 512.0
Deduct 1218 from 1509 and we're left with 291.
Append the next digit (7) from the dividend to 291 and continue with: 2917 / 609

On to step 7:
609 goes into 2917 4 times with a remainder of 481.
Write down 4 as next digit of the result. 
Result so far: 5124.0
Deduct 2436 from 2917 and we're left with 481.
Fetch the next digit (2) from the dividend, attach it to 481 and continue: 4812 / 609

Advancing to step 8:
609 can be fit into 4812 7 times, resulting in a remainder of 549.
Record the quotient 7 as the next digit in the result. 
Result so far: 51247.0
If we take 4263 away from 4812, we end up with 549.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5490, and continue the process.

Let's proceed to step 9:
If we divide 5490 by 609, we get 9 and a remainder of 9.
The next digit of our result is 9. 
Result so far: 51247.9
The remainder is 9 after subtracting 5481 from 5490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 10:
The number 609 fits into 90 0 times, leaving a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 51247.9
Deduct 0 from 90 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 11:
609 can be fit into 900 1 times, resulting in a remainder of 291.
Use 1 as the next digit of our solution. 
Result so far: 51247.901
If we take 609 away from 900, we end up with 291.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

Moving on to step 12:
If we divide 2910 by 609, we get 4 and a remainder of 474.
Record the quotient 4 as the next digit in the result. 
Result so far: 51247.9014
Subtracting 2436 from 2910 leaves us with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Moving on to step 13:
The number 609 fits into 4740 7 times, leaving a remainder of 477.
The next digit of our result is 7. 
Result so far: 51247.90147
Deduct 4263 from 4740 and we're left with 477.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

Advancing to step 14:
609 can be fit into 4770 7 times, resulting in a remainder of 507.
Use 7 as the next digit of our solution. 
Result so far: 51247.901477
Subtracting 4263 from 4770 leaves us with 507.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5070, and continue the process.

After the division, we end up with 51247.901477 and a remainder of 5.07e-05.