646909 ÷ 37 
The aim is to understand the frequency of 37 in 646909.

On to step 1:
37 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 37

Step 2:
The number 37 fits into 64 1 times, leaving a remainder of 27.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 37 from 64 and we're left with 27.
Grab the next digit (6) from the dividend, add it to 27, then carry on: 276 / 37

Moving on to step 3:
If we divide 276 by 37, we get 7 and a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Subtract 259 from 276 to get 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 37

Let's proceed to step 4:
If we divide 179 by 37, we get 4 and a remainder of 31.
The next digit of our result is 4. 
Result so far: 174.0
The remainder is 31 after subtracting 148 from 179.
Grab the next digit (0) from the dividend, add it to 31, then carry on: 310 / 37

Going ahead to step 5:
37 goes into 310 8 times with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 1748.0
If we subtract 296 from 310, we get 14.
Fetch the next digit (9) from the dividend, attach it to 14 and continue: 149 / 37

Let's proceed to step 6:
If we divide 149 by 37, we get 4 and a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 17484.0
Deduct 148 from 149 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.

Moving on to step 7:
37 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 17484.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
37 goes into 100 2 times with a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 17484.02
If we take 74 away from 100, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 9:
260 divided by 37 is 7 with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 17484.027
The remainder is 1 after subtracting 259 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 10:
37 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 17484.027
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
When dividing 100 by 37, we get 2 with a remainder of 26.
The number 2 becomes the next digit in our result. 
Result so far: 17484.02702
If we subtract 74 from 100, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 12:
260 divided by 37 is 7 with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 17484.027027
Deduct 259 from 260 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.

On to step 13:
If we divide 10 by 37, we get 0 and a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 17484.027027
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 14:
When dividing 100 by 37, we get 2 with a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 17484.02702702
If we subtract 74 from 100, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final result is 17484.02702702 with a remainder of 2.6e-08.