Let's divide 3900156 by 555
The aim is to understand the frequency of 555 in 3900156.

Moving on to step 1:
3 divided by 555 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 555

Moving on to step 2:
When dividing 39 by 555, we get 0 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.
Fetch the next digit (0) from the dividend, attach it to 39 and continue: 390 / 555

Step 3:
The number 555 fits into 390 0 times, leaving a remainder of 390.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 390 after subtracting 0 from 390.
Append the next digit (0) from the dividend to 390 and continue with: 3900 / 555

Moving on to step 4:
555 goes into 3900 7 times with a remainder of 15.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 3885 from 3900, we get 15.
Take the next digit (1) from the dividend and append it to 15, then repeat: 151 / 555

Moving on to step 5:
151 divided by 555 is 0 with a remainder of 151.
The next digit of our result is 0. 
Result so far: 70.0
Subtract 0 from 151 to get 151.
Take the next digit (5) from the dividend and append it to 151, then repeat: 1515 / 555

On to step 6:
If we divide 1515 by 555, we get 2 and a remainder of 405.
Use 2 as the next digit of our solution. 
Result so far: 702.0
Subtract 1110 from 1515 to get 405.
Fetch the next digit (6) from the dividend, attach it to 405 and continue: 4056 / 555

Moving on to step 7:
If we divide 4056 by 555, we get 7 and a remainder of 171.
Write down 7 as next digit of the result. 
Result so far: 7027.0
If we subtract 3885 from 4056, we get 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Step 8:
555 can be fit into 1710 3 times, resulting in a remainder of 45.
Write down 3 as next digit of the result. 
Result so far: 7027.3
If we subtract 1665 from 1710, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 9:
555 can be fit into 450 0 times, resulting in a remainder of 450.
The next digit of our result is 0. 
Result so far: 7027.3
The remainder is 450 after subtracting 0 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 10:
4500 divided by 555 is 8 with a remainder of 60.
Write down 8 as next digit of the result. 
Result so far: 7027.308
If we subtract 4440 from 4500, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
555 goes into 600 1 times with a remainder of 45.
Write down 1 as next digit of the result. 
Result so far: 7027.3081
If we take 555 away from 600, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 12:
450 divided by 555 is 0 with a remainder of 450.
Write down 0 as next digit of the result. 
Result so far: 7027.3081
The remainder is 450 after subtracting 0 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 13:
555 goes into 4500 8 times with a remainder of 60.
Use 8 as the next digit of our solution. 
Result so far: 7027.308108
The remainder is 60 after subtracting 4440 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 14:
When dividing 600 by 555, we get 1 with a remainder of 45.
Put 1 as the next digit of the answer. 
Result so far: 7027.3081081
If we subtract 555 from 600, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 15:
If we divide 450 by 555, we get 0 and a remainder of 450.
Record the quotient 0 as the next digit in the result. 
Result so far: 7027.3081081
If we subtract 0 from 450, we get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

The quotient of the division is 7027.3081081, and the remainder is 4.5e-07.