Let's divide 49954893 by 643
The aim is to understand the frequency of 643 in 49954893.

Moving on to step 1:
If we divide 4 by 643, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 643

Moving on to step 2:
49 divided by 643 is 0 with a remainder of 49.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 49, we get 49.
Take the next digit (9) from the dividend and append it to 49, then repeat: 499 / 643

Moving on to step 3:
643 can be fit into 499 0 times, resulting in a remainder of 499.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 499, we get 499.
Append the next digit (5) from the dividend to 499 and continue with: 4995 / 643

Let's proceed to step 4:
643 can be fit into 4995 7 times, resulting in a remainder of 494.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we take 4501 away from 4995, we end up with 494.
Bring next digit (4) of the dividend behind the 494 and repeat the process: 4944 / 643

Step 5:
643 goes into 4944 7 times with a remainder of 443.
Put 7 as the next digit of the answer. 
Result so far: 77.0
If we subtract 4501 from 4944, we get 443.
Fetch the next digit (8) from the dividend, attach it to 443 and continue: 4438 / 643

Moving on to step 6:
643 goes into 4438 6 times with a remainder of 580.
Write down 6 as next digit of the result. 
Result so far: 776.0
If we take 3858 away from 4438, we end up with 580.
Fetch the next digit (9) from the dividend, attach it to 580 and continue: 5809 / 643

Advancing to step 7:
When dividing 5809 by 643, we get 9 with a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 7769.0
If we subtract 5787 from 5809, we get 22.
Grab the next digit (3) from the dividend, add it to 22, then carry on: 223 / 643

Let's proceed to step 8:
If we divide 223 by 643, we get 0 and a remainder of 223.
Put 0 as the next digit of the answer. 
Result so far: 77690.0
If we subtract 0 from 223, we get 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Let's proceed to step 9:
When dividing 2230 by 643, we get 3 with a remainder of 301.
The next digit of our result is 3. 
Result so far: 77690.3
Subtracting 1929 from 2230 leaves us with 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

On to step 10:
When dividing 3010 by 643, we get 4 with a remainder of 438.
The number 4 becomes the next digit in our result. 
Result so far: 77690.34
The remainder is 438 after subtracting 2572 from 3010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

Step 11:
4380 divided by 643 is 6 with a remainder of 522.
Record the quotient 6 as the next digit in the result. 
Result so far: 77690.346
If we take 3858 away from 4380, we end up with 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

Moving on to step 12:
When dividing 5220 by 643, we get 8 with a remainder of 76.
Write down 8 as next digit of the result. 
Result so far: 77690.3468
If we take 5144 away from 5220, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 13:
643 can be fit into 760 1 times, resulting in a remainder of 117.
Use 1 as the next digit of our solution. 
Result so far: 77690.34681
The remainder is 117 after subtracting 643 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Let's proceed to step 14:
643 can be fit into 1170 1 times, resulting in a remainder of 527.
The next digit of our result is 1. 
Result so far: 77690.346811
Subtract 643 from 1170 to get 527.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5270, and continue the process.

After the division, we end up with 77690.346811 and a remainder of 5.27e-05.