We look at the division of 47361477 by 643 
The aim is to understand the frequency of 643 in 47361477.

On to step 1:
643 goes into 4 0 times with 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.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 643

Let's proceed to step 2:
643 goes into 47 0 times with a remainder of 47.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 47 after subtracting 0 from 47.
Include the next digit (3) from the dividend after 47, then repeat: 473 / 643

Let's proceed to step 3:
If we divide 473 by 643, we get 0 and a remainder of 473.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 473 and we're left with 473.
Grab the next digit (6) from the dividend, add it to 473, then carry on: 4736 / 643

Going ahead to step 4:
The number 643 fits into 4736 7 times, leaving a remainder of 235.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 4501 from 4736 leaves us with 235.
Include the next digit (1) from the dividend after 235, then repeat: 2351 / 643

Advancing to step 5:
2351 divided by 643 is 3 with a remainder of 422.
The next digit of our result is 3. 
Result so far: 73.0
If we take 1929 away from 2351, we end up with 422.
Fetch the next digit (4) from the dividend, attach it to 422 and continue: 4224 / 643

Moving on to step 6:
643 goes into 4224 6 times with a remainder of 366.
The next digit of our result is 6. 
Result so far: 736.0
Subtracting 3858 from 4224 leaves us with 366.
Bring next digit (7) of the dividend behind the 366 and repeat the process: 3667 / 643

Step 7:
When dividing 3667 by 643, we get 5 with a remainder of 452.
Put 5 as the next digit of the answer. 
Result so far: 7365.0
The remainder is 452 after subtracting 3215 from 3667.
Take the next digit (7) from the dividend and append it to 452, then repeat: 4527 / 643

Moving on to step 8:
643 goes into 4527 7 times with a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 73657.0
Deduct 4501 from 4527 and we're left 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:
The number 643 fits into 260 0 times, leaving a remainder of 260.
Write down 0 as next digit of the result. 
Result so far: 73657.0
If we subtract 0 from 260, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Let's proceed to step 10:
The number 643 fits into 2600 4 times, leaving a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 73657.04
Subtract 2572 from 2600 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 11:
643 can be fit into 280 0 times, resulting in a remainder of 280.
The number 0 becomes the next digit in our result. 
Result so far: 73657.04
Subtracting 0 from 280 leaves us 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 12:
643 goes into 2800 4 times with a remainder of 228.
The number 4 becomes the next digit in our result. 
Result so far: 73657.0404
Subtracting 2572 from 2800 leaves us with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Advancing to step 13:
The number 643 fits into 2280 3 times, leaving a remainder of 351.
Record the quotient 3 as the next digit in the result. 
Result so far: 73657.04043
The remainder is 351 after subtracting 1929 from 2280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

Going ahead to step 14:
The number 643 fits into 3510 5 times, leaving a remainder of 295.
The next digit of our result is 5. 
Result so far: 73657.040435
If we subtract 3215 from 3510, we get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Going ahead to step 15:
2950 divided by 643 is 4 with a remainder of 378.
The next digit of our result is 4. 
Result so far: 73657.0404354
The remainder is 378 after subtracting 2572 from 2950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Advancing to step 16:
The number 643 fits into 3780 5 times, leaving a remainder of 565.
The next digit of our result is 5. 
Result so far: 73657.04043545
If we take 3215 away from 3780, we end up with 565.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

The final outcome is 73657.04043545, with a leftover of 5.65e-07.