3857739 ÷ 534 
The aim is to understand the frequency of 534 in 3857739.

Let's proceed to step 1:
If we divide 3 by 534, we get 0 and 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.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 534

On to step 2:
The number 534 fits into 38 0 times, leaving a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Grab the next digit (5) from the dividend, add it to 38, then carry on: 385 / 534

Let's proceed to step 3:
534 goes into 385 0 times with a remainder of 385.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 385, we get 385.
Take the next digit (7) from the dividend and append it to 385, then repeat: 3857 / 534

Moving on to step 4:
When dividing 3857 by 534, we get 7 with a remainder of 119.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 3738 from 3857, we get 119.
Bring next digit (7) of the dividend behind the 119 and repeat the process: 1197 / 534

Let's proceed to step 5:
The number 534 fits into 1197 2 times, leaving a remainder of 129.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
Subtract 1068 from 1197 to get 129.
Include the next digit (3) from the dividend after 129, then repeat: 1293 / 534

Going ahead to step 6:
If we divide 1293 by 534, we get 2 and a remainder of 225.
Record the quotient 2 as the next digit in the result. 
Result so far: 722.0
If we take 1068 away from 1293, we end up with 225.
Append the next digit (9) from the dividend to 225 and continue with: 2259 / 534

Going ahead to step 7:
534 can be fit into 2259 4 times, resulting in a remainder of 123.
Write down 4 as next digit of the result. 
Result so far: 7224.0
Subtract 2136 from 2259 to get 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Going ahead to step 8:
534 goes into 1230 2 times with a remainder of 162.
Put 2 as the next digit of the answer. 
Result so far: 7224.2
Deduct 1068 from 1230 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Going ahead to step 9:
The number 534 fits into 1620 3 times, leaving a remainder of 18.
Use 3 as the next digit of our solution. 
Result so far: 7224.23
If we take 1602 away from 1620, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 10:
180 divided by 534 is 0 with a remainder of 180.
Record the quotient 0 as the next digit in the result. 
Result so far: 7224.23
If we take 0 away from 180, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Moving on to step 11:
534 can be fit into 1800 3 times, resulting in a remainder of 198.
Record the quotient 3 as the next digit in the result. 
Result so far: 7224.2303
Subtracting 1602 from 1800 leaves us with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Let's proceed to step 12:
The number 534 fits into 1980 3 times, leaving a remainder of 378.
The next digit of our result is 3. 
Result so far: 7224.23033
Deduct 1602 from 1980 and we're left with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

The final result is 7224.23033 with a remainder of 0.000378.