Let's divide 31660409 by 890
The aim is to understand the frequency of 890 in 31660409.

On to step 1:
890 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 890

Step 2:
If we divide 31 by 890, we get 0 and a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 31 to get 31.
Include the next digit (6) from the dividend after 31, then repeat: 316 / 890

On to step 3:
The number 890 fits into 316 0 times, leaving a remainder of 316.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 316 leaves us with 316.
Take the next digit (6) from the dividend and append it to 316, then repeat: 3166 / 890

Let's proceed to step 4:
If we divide 3166 by 890, we get 3 and a remainder of 496.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 2670 from 3166 and we're left with 496.
Fetch the next digit (0) from the dividend, attach it to 496 and continue: 4960 / 890

Going ahead to step 5:
890 can be fit into 4960 5 times, resulting in a remainder of 510.
Record the quotient 5 as the next digit in the result. 
Result so far: 35.0
If we subtract 4450 from 4960, we get 510.
Fetch the next digit (4) from the dividend, attach it to 510 and continue: 5104 / 890

Advancing to step 6:
The number 890 fits into 5104 5 times, leaving a remainder of 654.
Put 5 as the next digit of the answer. 
Result so far: 355.0
Subtracting 4450 from 5104 leaves us with 654.
Append the next digit (0) from the dividend to 654 and continue with: 6540 / 890

Step 7:
When dividing 6540 by 890, we get 7 with a remainder of 310.
The next digit of our result is 7. 
Result so far: 3557.0
If we take 6230 away from 6540, we end up with 310.
Include the next digit (9) from the dividend after 310, then repeat: 3109 / 890

Step 8:
3109 divided by 890 is 3 with a remainder of 439.
The next digit of our result is 3. 
Result so far: 35573.0
Subtracting 2670 from 3109 leaves us with 439.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4390, and continue the process.

On to step 9:
If we divide 4390 by 890, we get 4 and a remainder of 830.
Record the quotient 4 as the next digit in the result. 
Result so far: 35573.4
Subtracting 3560 from 4390 leaves us with 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8300, and continue the process.

Step 10:
The number 890 fits into 8300 9 times, leaving a remainder of 290.
Put 9 as the next digit of the answer. 
Result so far: 35573.49
Deduct 8010 from 8300 and we're left with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Let's proceed to step 11:
If we divide 2900 by 890, we get 3 and a remainder of 230.
Write down 3 as next digit of the result. 
Result so far: 35573.493
The remainder is 230 after subtracting 2670 from 2900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Advancing to step 12:
890 can be fit into 2300 2 times, resulting in a remainder of 520.
The number 2 becomes the next digit in our result. 
Result so far: 35573.4932
The remainder is 520 after subtracting 1780 from 2300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 13:
890 goes into 5200 5 times with a remainder of 750.
The number 5 becomes the next digit in our result. 
Result so far: 35573.49325
If we subtract 4450 from 5200, we get 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

On to step 14:
When dividing 7500 by 890, we get 8 with a remainder of 380.
The number 8 becomes the next digit in our result. 
Result so far: 35573.493258
Subtracting 7120 from 7500 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 15:
890 goes into 3800 4 times with a remainder of 240.
Put 4 as the next digit of the answer. 
Result so far: 35573.4932584
If we subtract 3560 from 3800, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 16:
If we divide 2400 by 890, we get 2 and a remainder of 620.
The number 2 becomes the next digit in our result. 
Result so far: 35573.49325842
The remainder is 620 after subtracting 1780 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

The final outcome is 35573.49325842, with a leftover of 6.2e-07.