We look at the division of 640461 by 49 
The aim is to understand the frequency of 49 in 640461.

Let's proceed to step 1:
6 divided by 49 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 49

Advancing to step 2:
The number 49 fits into 64 1 times, leaving a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 49 from 64, we get 15.
Grab the next digit (0) from the dividend, add it to 15, then carry on: 150 / 49

Moving on to step 3:
49 goes into 150 3 times with a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 147 away from 150, we end up with 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 49

Let's proceed to step 4:
When dividing 34 by 49, we get 0 with a remainder of 34.
The number 0 becomes the next digit in our result. 
Result so far: 130.0
Subtracting 0 from 34 leaves us with 34.
Append the next digit (6) from the dividend to 34 and continue with: 346 / 49

On to step 5:
49 goes into 346 7 times with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 1307.0
If we subtract 343 from 346, we get 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 49

Advancing to step 6:
If we divide 31 by 49, we get 0 and a remainder of 31.
The next digit of our result is 0. 
Result so far: 13070.0
If we take 0 away from 31, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 7:
310 divided by 49 is 6 with a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 13070.6
Subtract 294 from 310 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 8:
If we divide 160 by 49, we get 3 and a remainder of 13.
Write down 3 as next digit of the result. 
Result so far: 13070.63
If we take 147 away from 160, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 9:
130 divided by 49 is 2 with a remainder of 32.
The next digit of our result is 2. 
Result so far: 13070.632
Deduct 98 from 130 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 10:
320 divided by 49 is 6 with a remainder of 26.
The next digit of our result is 6. 
Result so far: 13070.6326
Subtract 294 from 320 to 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.

On to step 11:
When dividing 260 by 49, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 13070.63265
Subtract 245 from 260 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 12:
49 can be fit into 150 3 times, resulting in a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 13070.632653
If we take 147 away from 150, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 13:
When dividing 30 by 49, we get 0 with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 13070.632653
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 14:
When dividing 300 by 49, we get 6 with a remainder of 6.
The next digit of our result is 6. 
Result so far: 13070.63265306
If we subtract 294 from 300, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 13070.63265306 with a remainder of 6e-09.