We're dividing 54573943 by 743 
The aim is to understand the frequency of 743 in 54573943.

Moving on to step 1:
If we divide 5 by 743, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 743

Moving on to step 2:
If we divide 54 by 743, we get 0 and a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Bring next digit (5) of the dividend behind the 54 and repeat the process: 545 / 743

Advancing to step 3:
545 divided by 743 is 0 with a remainder of 545.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 545, we end up with 545.
Take the next digit (7) from the dividend and append it to 545, then repeat: 5457 / 743

On to step 4:
If we divide 5457 by 743, we get 7 and a remainder of 256.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 5201 from 5457, we get 256.
Fetch the next digit (3) from the dividend, attach it to 256 and continue: 2563 / 743

Moving on to step 5:
When dividing 2563 by 743, we get 3 with a remainder of 334.
Put 3 as the next digit of the answer. 
Result so far: 73.0
Subtracting 2229 from 2563 leaves us with 334.
Bring next digit (9) of the dividend behind the 334 and repeat the process: 3349 / 743

Moving on to step 6:
743 goes into 3349 4 times with a remainder of 377.
Record the quotient 4 as the next digit in the result. 
Result so far: 734.0
Deduct 2972 from 3349 and we're left with 377.
Fetch the next digit (4) from the dividend, attach it to 377 and continue: 3774 / 743

Step 7:
When dividing 3774 by 743, we get 5 with a remainder of 59.
Record the quotient 5 as the next digit in the result. 
Result so far: 7345.0
If we subtract 3715 from 3774, we get 59.
Grab the next digit (3) from the dividend, add it to 59, then carry on: 593 / 743

Step 8:
593 divided by 743 is 0 with a remainder of 593.
The next digit of our result is 0. 
Result so far: 73450.0
Subtract 0 from 593 to get 593.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5930, and continue the process.

Step 9:
743 goes into 5930 7 times with a remainder of 729.
The next digit of our result is 7. 
Result so far: 73450.7
Subtracting 5201 from 5930 leaves us with 729.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7290, and continue the process.

Advancing to step 10:
When dividing 7290 by 743, we get 9 with a remainder of 603.
Put 9 as the next digit of the answer. 
Result so far: 73450.79
The remainder is 603 after subtracting 6687 from 7290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6030, and continue the process.

Moving on to step 11:
743 goes into 6030 8 times with a remainder of 86.
Put 8 as the next digit of the answer. 
Result so far: 73450.798
Subtract 5944 from 6030 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 12:
743 can be fit into 860 1 times, resulting in a remainder of 117.
Write down 1 as next digit of the result. 
Result so far: 73450.7981
Deduct 743 from 860 and we're left with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Step 13:
When dividing 1170 by 743, we get 1 with a remainder of 427.
Write down 1 as next digit of the result. 
Result so far: 73450.79811
Deduct 743 from 1170 and we're left with 427.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4270, and continue the process.

The quotient of the division is 73450.79811, and the remainder is 0.000427.