We're dividing 661490 by 71 
The aim is to understand the frequency of 71 in 661490.

Going ahead to step 1:
71 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 71

Let's proceed to step 2:
When dividing 66 by 71, we get 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Include the next digit (1) from the dividend after 66, then repeat: 661 / 71

Step 3:
When dividing 661 by 71, we get 9 with a remainder of 22.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we subtract 639 from 661, we get 22.
Grab the next digit (4) from the dividend, add it to 22, then carry on: 224 / 71

Let's proceed to step 4:
If we divide 224 by 71, we get 3 and a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 93.0
Subtract 213 from 224 to get 11.
Bring next digit (9) of the dividend behind the 11 and repeat the process: 119 / 71

On to step 5:
When dividing 119 by 71, we get 1 with a remainder of 48.
The next digit of our result is 1. 
Result so far: 931.0
Deduct 71 from 119 and we're left with 48.
Take the next digit (0) from the dividend and append it to 48, then repeat: 480 / 71

Going ahead to step 6:
The number 71 fits into 480 6 times, leaving a remainder of 54.
Record the quotient 6 as the next digit in the result. 
Result so far: 9316.0
If we take 426 away from 480, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 7:
The number 71 fits into 540 7 times, leaving a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 9316.7
Deduct 497 from 540 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 8:
71 goes into 430 6 times with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 9316.76
Subtracting 426 from 430 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
The number 71 fits into 40 0 times, leaving a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 9316.76
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 10:
When dividing 400 by 71, we get 5 with a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 9316.7605
If we take 355 away from 400, 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.

Advancing to step 11:
If we divide 450 by 71, we get 6 and a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 9316.76056
The remainder is 24 after subtracting 426 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 12:
If we divide 240 by 71, we get 3 and a remainder of 27.
Use 3 as the next digit of our solution. 
Result so far: 9316.760563
If we subtract 213 from 240, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 13:
71 can be fit into 270 3 times, resulting in a remainder of 57.
Record the quotient 3 as the next digit in the result. 
Result so far: 9316.7605633
Subtract 213 from 270 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

After the division, we end up with 9316.7605633 and a remainder of 5.7e-07.