449612 ÷ 37 
The aim is to understand the frequency of 37 in 449612.

Step 1:
When dividing 4 by 37, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 37

Advancing to step 2:
44 divided by 37 is 1 with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 37 from 44 and we're left with 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 37

Step 3:
79 divided by 37 is 2 with a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 74 away from 79, we end up with 5.
Grab the next digit (6) from the dividend, add it to 5, then carry on: 56 / 37

Let's proceed to step 4:
When dividing 56 by 37, we get 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 121.0
Deduct 37 from 56 and we're left with 19.
Append the next digit (1) from the dividend to 19 and continue with: 191 / 37

On to step 5:
When dividing 191 by 37, we get 5 with a remainder of 6.
The number 5 becomes the next digit in our result. 
Result so far: 1215.0
Deduct 185 from 191 and we're left with 6.
Take the next digit (2) from the dividend and append it to 6, then repeat: 62 / 37

Moving on to step 6:
62 divided by 37 is 1 with a remainder of 25.
Put 1 as the next digit of the answer. 
Result so far: 12151.0
Deduct 37 from 62 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 7:
If we divide 250 by 37, we get 6 and a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 12151.6
If we subtract 222 from 250, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 8:
The number 37 fits into 280 7 times, leaving a remainder of 21.
The next digit of our result is 7. 
Result so far: 12151.67
The remainder is 21 after subtracting 259 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 9:
When dividing 210 by 37, we get 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 12151.675
If we subtract 185 from 210, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 10:
If we divide 250 by 37, we get 6 and a remainder of 28.
The next digit of our result is 6. 
Result so far: 12151.6756
Subtracting 222 from 250 leaves us 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.

Advancing to step 11:
37 goes into 280 7 times with a remainder of 21.
Record the quotient 7 as the next digit in the result. 
Result so far: 12151.67567
The remainder is 21 after subtracting 259 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 12:
37 can be fit into 210 5 times, resulting in a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 12151.675675
The remainder is 25 after subtracting 185 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 13:
250 divided by 37 is 6 with a remainder of 28.
Record the quotient 6 as the next digit in the result. 
Result so far: 12151.6756756
Deduct 222 from 250 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.

Going ahead to step 14:
When dividing 280 by 37, we get 7 with a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 12151.67567567
Deduct 259 from 280 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

The final outcome is 12151.67567567, with a leftover of 2.1e-08.