We're dividing 37107211 by 409 
The aim is to understand the frequency of 409 in 37107211.

Moving on to step 1:
3 divided by 409 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 409

On to step 2:
The number 409 fits into 37 0 times, leaving a remainder of 37.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 37 after subtracting 0 from 37.
Take the next digit (1) from the dividend and append it to 37, then repeat: 371 / 409

Step 3:
The number 409 fits into 371 0 times, leaving a remainder of 371.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 371 leaves us with 371.
Take the next digit (0) from the dividend and append it to 371, then repeat: 3710 / 409

On to step 4:
409 goes into 3710 9 times with a remainder of 29.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 29 after subtracting 3681 from 3710.
Append the next digit (7) from the dividend to 29 and continue with: 297 / 409

Moving on to step 5:
409 goes into 297 0 times with a remainder of 297.
Write down 0 as next digit of the result. 
Result so far: 90.0
Subtracting 0 from 297 leaves us with 297.
Bring next digit (2) of the dividend behind the 297 and repeat the process: 2972 / 409

Going ahead to step 6:
409 goes into 2972 7 times with a remainder of 109.
Put 7 as the next digit of the answer. 
Result so far: 907.0
If we subtract 2863 from 2972, we get 109.
Fetch the next digit (1) from the dividend, attach it to 109 and continue: 1091 / 409

Let's proceed to step 7:
The number 409 fits into 1091 2 times, leaving a remainder of 273.
The number 2 becomes the next digit in our result. 
Result so far: 9072.0
The remainder is 273 after subtracting 818 from 1091.
Append the next digit (1) from the dividend to 273 and continue with: 2731 / 409

On to step 8:
409 goes into 2731 6 times with a remainder of 277.
The number 6 becomes the next digit in our result. 
Result so far: 90726.0
If we subtract 2454 from 2731, we get 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Step 9:
If we divide 2770 by 409, we get 6 and a remainder of 316.
Put 6 as the next digit of the answer. 
Result so far: 90726.6
The remainder is 316 after subtracting 2454 from 2770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Moving on to step 10:
3160 divided by 409 is 7 with a remainder of 297.
Put 7 as the next digit of the answer. 
Result so far: 90726.67
If we subtract 2863 from 3160, we get 297.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2970, and continue the process.

Let's proceed to step 11:
The number 409 fits into 2970 7 times, leaving a remainder of 107.
The next digit of our result is 7. 
Result so far: 90726.677
If we take 2863 away from 2970, we end up with 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

After the division, we end up with 90726.677 and a remainder of 0.0107.