We're dividing 83700243 by 394 
The aim is to understand the frequency of 394 in 83700243.

Let's proceed to step 1:
394 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 394

Going ahead to step 2:
If we divide 83 by 394, we get 0 and a remainder of 83.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 83 leaves us with 83.
Include the next digit (7) from the dividend after 83, then repeat: 837 / 394

Advancing to step 3:
The number 394 fits into 837 2 times, leaving a remainder of 49.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 788 from 837 and we're left with 49.
Bring next digit (0) of the dividend behind the 49 and repeat the process: 490 / 394

Moving on to step 4:
394 goes into 490 1 times with a remainder of 96.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
The remainder is 96 after subtracting 394 from 490.
Fetch the next digit (0) from the dividend, attach it to 96 and continue: 960 / 394

Moving on to step 5:
394 can be fit into 960 2 times, resulting in a remainder of 172.
Write down 2 as next digit of the result. 
Result so far: 212.0
The remainder is 172 after subtracting 788 from 960.
Grab the next digit (2) from the dividend, add it to 172, then carry on: 1722 / 394

Step 6:
1722 divided by 394 is 4 with a remainder of 146.
Put 4 as the next digit of the answer. 
Result so far: 2124.0
Subtract 1576 from 1722 to get 146.
Grab the next digit (4) from the dividend, add it to 146, then carry on: 1464 / 394

Step 7:
When dividing 1464 by 394, we get 3 with a remainder of 282.
Record the quotient 3 as the next digit in the result. 
Result so far: 21243.0
Subtract 1182 from 1464 to get 282.
Append the next digit (3) from the dividend to 282 and continue with: 2823 / 394

Going ahead to step 8:
The number 394 fits into 2823 7 times, leaving a remainder of 65.
Put 7 as the next digit of the answer. 
Result so far: 212437.0
Subtract 2758 from 2823 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 9:
When dividing 650 by 394, we get 1 with a remainder of 256.
Put 1 as the next digit of the answer. 
Result so far: 212437.1
Subtract 394 from 650 to get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Going ahead to step 10:
394 can be fit into 2560 6 times, resulting in a remainder of 196.
The next digit of our result is 6. 
Result so far: 212437.16
If we subtract 2364 from 2560, we get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Advancing to step 11:
1960 divided by 394 is 4 with a remainder of 384.
Write down 4 as next digit of the result. 
Result so far: 212437.164
If we take 1576 away from 1960, we end up with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Moving on to step 12:
When dividing 3840 by 394, we get 9 with a remainder of 294.
Record the quotient 9 as the next digit in the result. 
Result so far: 212437.1649
If we take 3546 away from 3840, we end up with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Let's proceed to step 13:
2940 divided by 394 is 7 with a remainder of 182.
Record the quotient 7 as the next digit in the result. 
Result so far: 212437.16497
Deduct 2758 from 2940 and we're left with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

On to step 14:
If we divide 1820 by 394, we get 4 and a remainder of 244.
The number 4 becomes the next digit in our result. 
Result so far: 212437.164974
The remainder is 244 after subtracting 1576 from 1820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

On to step 15:
2440 divided by 394 is 6 with a remainder of 76.
The number 6 becomes the next digit in our result. 
Result so far: 212437.1649746
Subtract 2364 from 2440 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 16:
394 can be fit into 760 1 times, resulting in a remainder of 366.
The number 1 becomes the next digit in our result. 
Result so far: 212437.16497461
Deduct 394 from 760 and we're left with 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

After the division, we end up with 212437.16497461 and a remainder of 3.66e-07.