We look at the division of 143470 by 61 
The aim is to understand the frequency of 61 in 143470.

Moving on to step 1:
When dividing 1 by 61, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 61

Step 2:
If we divide 14 by 61, we get 0 and a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 14 to get 14.
Grab the next digit (3) from the dividend, add it to 14, then carry on: 143 / 61

Let's proceed to step 3:
143 divided by 61 is 2 with a remainder of 21.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 122 away from 143, we end up with 21.
Grab the next digit (4) from the dividend, add it to 21, then carry on: 214 / 61

On to step 4:
If we divide 214 by 61, we get 3 and a remainder of 31.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
If we take 183 away from 214, we end up with 31.
Include the next digit (7) from the dividend after 31, then repeat: 317 / 61

On to step 5:
The number 61 fits into 317 5 times, leaving a remainder of 12.
Record the quotient 5 as the next digit in the result. 
Result so far: 235.0
Subtract 305 from 317 to get 12.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 61

Step 6:
If we divide 120 by 61, we get 1 and a remainder of 59.
Use 1 as the next digit of our solution. 
Result so far: 2351.0
If we take 61 away from 120, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 7:
61 can be fit into 590 9 times, resulting in a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 2351.9
The remainder is 41 after subtracting 549 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 8:
When dividing 410 by 61, we get 6 with a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 2351.96
Deduct 366 from 410 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 9:
If we divide 440 by 61, we get 7 and a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 2351.967
Deduct 427 from 440 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 10:
130 divided by 61 is 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 2351.9672
Subtract 122 from 130 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 11:
If we divide 80 by 61, we get 1 and a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 2351.96721
The remainder is 19 after subtracting 61 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 12:
If we divide 190 by 61, we get 3 and a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 2351.967213
If we subtract 183 from 190, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 13:
61 goes into 70 1 times with a remainder of 9.
The next digit of our result is 1. 
Result so far: 2351.9672131
The remainder is 9 after subtracting 61 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 14:
61 goes into 90 1 times with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 2351.96721311
Deduct 61 from 90 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The quotient of the division is 2351.96721311, and the remainder is 2.9e-08.