We're dividing 36445943 by 839 
The aim is to understand the frequency of 839 in 36445943.

Step 1:
839 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 839

Let's proceed to step 2:
36 divided by 839 is 0 with a remainder of 36.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 36, we end up with 36.
Take the next digit (4) from the dividend and append it to 36, then repeat: 364 / 839

Going ahead to step 3:
839 can be fit into 364 0 times, resulting in a remainder of 364.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 364 to get 364.
Append the next digit (4) from the dividend to 364 and continue with: 3644 / 839

Advancing to step 4:
839 goes into 3644 4 times with a remainder of 288.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 3356 away from 3644, we end up with 288.
Grab the next digit (5) from the dividend, add it to 288, then carry on: 2885 / 839

Step 5:
If we divide 2885 by 839, we get 3 and a remainder of 368.
The next digit of our result is 3. 
Result so far: 43.0
If we subtract 2517 from 2885, we get 368.
Take the next digit (9) from the dividend and append it to 368, then repeat: 3689 / 839

Advancing to step 6:
The number 839 fits into 3689 4 times, leaving a remainder of 333.
Use 4 as the next digit of our solution. 
Result so far: 434.0
If we subtract 3356 from 3689, we get 333.
Grab the next digit (4) from the dividend, add it to 333, then carry on: 3334 / 839

On to step 7:
If we divide 3334 by 839, we get 3 and a remainder of 817.
Use 3 as the next digit of our solution. 
Result so far: 4343.0
If we take 2517 away from 3334, we end up with 817.
Include the next digit (3) from the dividend after 817, then repeat: 8173 / 839

On to step 8:
If we divide 8173 by 839, we get 9 and a remainder of 622.
Use 9 as the next digit of our solution. 
Result so far: 43439.0
Deduct 7551 from 8173 and we're left with 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

On to step 9:
The number 839 fits into 6220 7 times, leaving a remainder of 347.
Write down 7 as next digit of the result. 
Result so far: 43439.7
Subtracting 5873 from 6220 leaves us with 347.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3470, and continue the process.

Step 10:
The number 839 fits into 3470 4 times, leaving a remainder of 114.
The number 4 becomes the next digit in our result. 
Result so far: 43439.74
Subtract 3356 from 3470 to get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

On to step 11:
839 can be fit into 1140 1 times, resulting in a remainder of 301.
Use 1 as the next digit of our solution. 
Result so far: 43439.741
If we take 839 away from 1140, we end up 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.

Going ahead to step 12:
839 can be fit into 3010 3 times, resulting in a remainder of 493.
The next digit of our result is 3. 
Result so far: 43439.7413
If we subtract 2517 from 3010, we get 493.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4930, and continue the process.

Advancing to step 13:
839 can be fit into 4930 5 times, resulting in a remainder of 735.
Put 5 as the next digit of the answer. 
Result so far: 43439.74135
Subtract 4195 from 4930 to get 735.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7350, and continue the process.

Going ahead to step 14:
When dividing 7350 by 839, we get 8 with a remainder of 638.
Put 8 as the next digit of the answer. 
Result so far: 43439.741358
Subtract 6712 from 7350 to get 638.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

Advancing to step 15:
The number 839 fits into 6380 7 times, leaving a remainder of 507.
The next digit of our result is 7. 
Result so far: 43439.7413587
If we subtract 5873 from 6380, we get 507.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5070, and continue the process.

Advancing to step 16:
When dividing 5070 by 839, we get 6 with a remainder of 36.
Write down 6 as next digit of the result. 
Result so far: 43439.74135876
Subtract 5034 from 5070 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

After the division, we end up with 43439.74135876 and a remainder of 3.6e-08.