We're dividing 3155949 by 606 
The aim is to understand the frequency of 606 in 3155949.

Step 1:
3 divided by 606 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 606

Step 2:
31 divided by 606 is 0 with a remainder of 31.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Append the next digit (5) from the dividend to 31 and continue with: 315 / 606

On to step 3:
315 divided by 606 is 0 with a remainder of 315.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 315 leaves us with 315.
Fetch the next digit (5) from the dividend, attach it to 315 and continue: 3155 / 606

Moving on to step 4:
When dividing 3155 by 606, we get 5 with a remainder of 125.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 3030 from 3155 to get 125.
Grab the next digit (9) from the dividend, add it to 125, then carry on: 1259 / 606

Advancing to step 5:
606 goes into 1259 2 times with a remainder of 47.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
The remainder is 47 after subtracting 1212 from 1259.
Include the next digit (4) from the dividend after 47, then repeat: 474 / 606

On to step 6:
If we divide 474 by 606, we get 0 and a remainder of 474.
The number 0 becomes the next digit in our result. 
Result so far: 520.0
If we take 0 away from 474, we end up with 474.
Append the next digit (9) from the dividend to 474 and continue with: 4749 / 606

Moving on to step 7:
4749 divided by 606 is 7 with a remainder of 507.
The next digit of our result is 7. 
Result so far: 5207.0
Subtract 4242 from 4749 to 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 8:
If we divide 5070 by 606, we get 8 and a remainder of 222.
Put 8 as the next digit of the answer. 
Result so far: 5207.8
Subtract 4848 from 5070 to get 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Going ahead to step 9:
If we divide 2220 by 606, we get 3 and a remainder of 402.
Use 3 as the next digit of our solution. 
Result so far: 5207.83
If we take 1818 away from 2220, we end up with 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

On to step 10:
If we divide 4020 by 606, we get 6 and a remainder of 384.
The next digit of our result is 6. 
Result so far: 5207.836
Subtract 3636 from 4020 to get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Going ahead to step 11:
606 goes into 3840 6 times with a remainder of 204.
The next digit of our result is 6. 
Result so far: 5207.8366
Subtract 3636 from 3840 to get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

The final outcome is 5207.8366, with a leftover of 0.00204.