We're dividing 660143 by 49 
The aim is to understand the frequency of 49 in 660143.

Moving on to step 1:
49 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 49

Step 2:
66 divided by 49 is 1 with a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 49 from 66 and we're left with 17.
Bring next digit (0) of the dividend behind the 17 and repeat the process: 170 / 49

Let's proceed to step 3:
The number 49 fits into 170 3 times, leaving a remainder of 23.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Deduct 147 from 170 and we're left with 23.
Grab the next digit (1) from the dividend, add it to 23, then carry on: 231 / 49

Advancing to step 4:
If we divide 231 by 49, we get 4 and a remainder of 35.
Put 4 as the next digit of the answer. 
Result so far: 134.0
If we take 196 away from 231, we end up with 35.
Grab the next digit (4) from the dividend, add it to 35, then carry on: 354 / 49

Advancing to step 5:
When dividing 354 by 49, we get 7 with a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 1347.0
Subtracting 343 from 354 leaves us with 11.
Append the next digit (3) from the dividend to 11 and continue with: 113 / 49

On to step 6:
49 can be fit into 113 2 times, resulting in a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 13472.0
If we take 98 away from 113, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 7:
150 divided by 49 is 3 with a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 13472.3
If we subtract 147 from 150, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 8:
If we divide 30 by 49, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 13472.3
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
49 goes into 300 6 times with a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 13472.306
The remainder is 6 after subtracting 294 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 10:
If we divide 60 by 49, we get 1 and a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 13472.3061
If we subtract 49 from 60, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 11:
49 can be fit into 110 2 times, resulting in a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 13472.30612
If we subtract 98 from 110, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 12:
When dividing 120 by 49, we get 2 with a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 13472.306122
The remainder is 22 after subtracting 98 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final result is 13472.306122 with a remainder of 2.2e-06.