901071 ÷ 61 
The aim is to understand the frequency of 61 in 901071.

Step 1:
If we divide 9 by 61, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 61

Let's proceed to step 2:
61 goes into 90 1 times with a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 61 from 90 and we're left with 29.
Append the next digit (1) from the dividend to 29 and continue with: 291 / 61

Advancing to step 3:
61 goes into 291 4 times with a remainder of 47.
Use 4 as the next digit of our solution. 
Result so far: 14.0
If we take 244 away from 291, we end up with 47.
Fetch the next digit (0) from the dividend, attach it to 47 and continue: 470 / 61

Step 4:
When dividing 470 by 61, we get 7 with a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 147.0
The remainder is 43 after subtracting 427 from 470.
Bring next digit (7) of the dividend behind the 43 and repeat the process: 437 / 61

Going ahead to step 5:
The number 61 fits into 437 7 times, leaving a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 1477.0
If we subtract 427 from 437, we get 10.
Include the next digit (1) from the dividend after 10, then repeat: 101 / 61

Let's proceed to step 6:
61 goes into 101 1 times with a remainder of 40.
Put 1 as the next digit of the answer. 
Result so far: 14771.0
Deduct 61 from 101 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 7:
The number 61 fits into 400 6 times, leaving a remainder of 34.
The number 6 becomes the next digit in our result. 
Result so far: 14771.6
Subtracting 366 from 400 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 8:
The number 61 fits into 340 5 times, leaving a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 14771.65
If we take 305 away from 340, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 9:
The number 61 fits into 350 5 times, leaving a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 14771.655
The remainder is 45 after subtracting 305 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

After the division, we end up with 14771.655 and a remainder of 0.0045.