We look at the division of 49511120 by 641 
The aim is to understand the frequency of 641 in 49511120.

Moving on to step 1:
641 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (9) from the dividend and append it to 4, then repeat: 49 / 641

Let's proceed to step 2:
641 goes into 49 0 times with a remainder of 49.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 49, we end up with 49.
Bring next digit (5) of the dividend behind the 49 and repeat the process: 495 / 641

On to step 3:
641 goes into 495 0 times with a remainder of 495.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 495 after subtracting 0 from 495.
Append the next digit (1) from the dividend to 495 and continue with: 4951 / 641

Step 4:
641 goes into 4951 7 times with a remainder of 464.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Deduct 4487 from 4951 and we're left with 464.
Grab the next digit (1) from the dividend, add it to 464, then carry on: 4641 / 641

Going ahead to step 5:
641 goes into 4641 7 times with a remainder of 154.
Record the quotient 7 as the next digit in the result. 
Result so far: 77.0
Subtract 4487 from 4641 to get 154.
Append the next digit (1) from the dividend to 154 and continue with: 1541 / 641

On to step 6:
The number 641 fits into 1541 2 times, leaving a remainder of 259.
Record the quotient 2 as the next digit in the result. 
Result so far: 772.0
The remainder is 259 after subtracting 1282 from 1541.
Bring next digit (2) of the dividend behind the 259 and repeat the process: 2592 / 641

Moving on to step 7:
When dividing 2592 by 641, we get 4 with a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 7724.0
If we take 2564 away from 2592, we end up with 28.
Append the next digit (0) from the dividend to 28 and continue with: 280 / 641

Going ahead to step 8:
The number 641 fits into 280 0 times, leaving a remainder of 280.
Record the quotient 0 as the next digit in the result. 
Result so far: 77240.0
Deduct 0 from 280 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 9:
If we divide 2800 by 641, we get 4 and a remainder of 236.
The next digit of our result is 4. 
Result so far: 77240.4
Subtracting 2564 from 2800 leaves us with 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Step 10:
641 can be fit into 2360 3 times, resulting in a remainder of 437.
Put 3 as the next digit of the answer. 
Result so far: 77240.43
If we take 1923 away from 2360, we end up with 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Step 11:
641 goes into 4370 6 times with a remainder of 524.
Put 6 as the next digit of the answer. 
Result so far: 77240.436
If we subtract 3846 from 4370, we get 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Step 12:
When dividing 5240 by 641, we get 8 with a remainder of 112.
The number 8 becomes the next digit in our result. 
Result so far: 77240.4368
If we subtract 5128 from 5240, we get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

On to step 13:
1120 divided by 641 is 1 with a remainder of 479.
Use 1 as the next digit of our solution. 
Result so far: 77240.43681
If we subtract 641 from 1120, we get 479.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4790, and continue the process.

Advancing to step 14:
If we divide 4790 by 641, we get 7 and a remainder of 303.
Write down 7 as next digit of the result. 
Result so far: 77240.436817
Subtracting 4487 from 4790 leaves us with 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

On to step 15:
641 goes into 3030 4 times with a remainder of 466.
Write down 4 as next digit of the result. 
Result so far: 77240.4368174
If we subtract 2564 from 3030, we get 466.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

Going ahead to step 16:
The number 641 fits into 4660 7 times, leaving a remainder of 173.
The number 7 becomes the next digit in our result. 
Result so far: 77240.43681747
Subtract 4487 from 4660 to get 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

The final outcome is 77240.43681747, with a leftover of 1.73e-07.