We're dividing 39671961 by 743 
The aim is to understand the frequency of 743 in 39671961.

Going ahead to step 1:
If we divide 3 by 743, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 743

Moving on to step 2:
743 goes into 39 0 times with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Take the next digit (6) from the dividend and append it to 39, then repeat: 396 / 743

Let's proceed to step 3:
396 divided by 743 is 0 with a remainder of 396.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 396, we get 396.
Append the next digit (7) from the dividend to 396 and continue with: 3967 / 743

Going ahead to step 4:
The number 743 fits into 3967 5 times, leaving a remainder of 252.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 3715 from 3967 leaves us with 252.
Grab the next digit (1) from the dividend, add it to 252, then carry on: 2521 / 743

Going ahead to step 5:
743 can be fit into 2521 3 times, resulting in a remainder of 292.
Use 3 as the next digit of our solution. 
Result so far: 53.0
If we subtract 2229 from 2521, we get 292.
Include the next digit (9) from the dividend after 292, then repeat: 2929 / 743

On to step 6:
When dividing 2929 by 743, we get 3 with a remainder of 700.
Use 3 as the next digit of our solution. 
Result so far: 533.0
The remainder is 700 after subtracting 2229 from 2929.
Include the next digit (6) from the dividend after 700, then repeat: 7006 / 743

Advancing to step 7:
The number 743 fits into 7006 9 times, leaving a remainder of 319.
The number 9 becomes the next digit in our result. 
Result so far: 5339.0
If we subtract 6687 from 7006, we get 319.
Include the next digit (1) from the dividend after 319, then repeat: 3191 / 743

On to step 8:
If we divide 3191 by 743, we get 4 and a remainder of 219.
Use 4 as the next digit of our solution. 
Result so far: 53394.0
Subtract 2972 from 3191 to get 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Let's proceed to step 9:
The number 743 fits into 2190 2 times, leaving a remainder of 704.
Put 2 as the next digit of the answer. 
Result so far: 53394.2
The remainder is 704 after subtracting 1486 from 2190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

On to step 10:
If we divide 7040 by 743, we get 9 and a remainder of 353.
Use 9 as the next digit of our solution. 
Result so far: 53394.29
The remainder is 353 after subtracting 6687 from 7040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Advancing to step 11:
743 can be fit into 3530 4 times, resulting in a remainder of 558.
Use 4 as the next digit of our solution. 
Result so far: 53394.294
Deduct 2972 from 3530 and we're left with 558.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5580, and continue the process.

Let's proceed to step 12:
The number 743 fits into 5580 7 times, leaving a remainder of 379.
Write down 7 as next digit of the result. 
Result so far: 53394.2947
The remainder is 379 after subtracting 5201 from 5580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

Moving on to step 13:
If we divide 3790 by 743, we get 5 and a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 53394.29475
Subtract 3715 from 3790 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 14:
If we divide 750 by 743, we get 1 and a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 53394.294751
If we subtract 743 from 750, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 15:
743 can be fit into 70 0 times, resulting in a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 53394.294751
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 16:
If we divide 700 by 743, we get 0 and a remainder of 700.
Record the quotient 0 as the next digit in the result. 
Result so far: 53394.294751
If we take 0 away from 700, we end up with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

The final result is 53394.294751 with a remainder of 7e-07.