We look at the division of 49833786 by 640 
The aim is to understand the frequency of 640 in 49833786.

Step 1:
640 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 640

Advancing to step 2:
49 divided by 640 is 0 with a remainder of 49.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 49 after subtracting 0 from 49.
Grab the next digit (8) from the dividend, add it to 49, then carry on: 498 / 640

On to step 3:
640 can be fit into 498 0 times, resulting in a remainder of 498.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 498 after subtracting 0 from 498.
Append the next digit (3) from the dividend to 498 and continue with: 4983 / 640

Moving on to step 4:
640 goes into 4983 7 times with a remainder of 503.
The next digit of our result is 7. 
Result so far: 7.0
Subtracting 4480 from 4983 leaves us with 503.
Include the next digit (3) from the dividend after 503, then repeat: 5033 / 640

Step 5:
When dividing 5033 by 640, we get 7 with a remainder of 553.
Write down 7 as next digit of the result. 
Result so far: 77.0
The remainder is 553 after subtracting 4480 from 5033.
Bring next digit (7) of the dividend behind the 553 and repeat the process: 5537 / 640

Step 6:
640 goes into 5537 8 times with a remainder of 417.
Use 8 as the next digit of our solution. 
Result so far: 778.0
Subtracting 5120 from 5537 leaves us with 417.
Include the next digit (8) from the dividend after 417, then repeat: 4178 / 640

Going ahead to step 7:
When dividing 4178 by 640, we get 6 with a remainder of 338.
The next digit of our result is 6. 
Result so far: 7786.0
Subtract 3840 from 4178 to get 338.
Bring next digit (6) of the dividend behind the 338 and repeat the process: 3386 / 640

Step 8:
3386 divided by 640 is 5 with a remainder of 186.
Write down 5 as next digit of the result. 
Result so far: 77865.0
Deduct 3200 from 3386 and we're left with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Advancing to step 9:
640 goes into 1860 2 times with a remainder of 580.
Use 2 as the next digit of our solution. 
Result so far: 77865.2
If we subtract 1280 from 1860, we get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Advancing to step 10:
640 goes into 5800 9 times with a remainder of 40.
Write down 9 as next digit of the result. 
Result so far: 77865.29
If we take 5760 away from 5800, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 11:
If we divide 400 by 640, we get 0 and a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 77865.29
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 12:
When dividing 4000 by 640, we get 6 with a remainder of 160.
The next digit of our result is 6. 
Result so far: 77865.2906
If we subtract 3840 from 4000, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 13:
If we divide 1600 by 640, we get 2 and a remainder of 320.
The number 2 becomes the next digit in our result. 
Result so far: 77865.29062
Deduct 1280 from 1600 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 14:
When dividing 3200 by 640, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 77865.290625
If we take 3200 away from 3200, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 15:
When dividing 0 by 640, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 77865.290625
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 16:
If we divide 0 by 640, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 77865.290625
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 77865.290625 with a remainder of 0.0.