We're dividing 68465161 by 561 
The aim is to understand the frequency of 561 in 68465161.

Step 1:
When dividing 6 by 561, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 561

Advancing to step 2:
The number 561 fits into 68 0 times, leaving a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 68, we end up with 68.
Append the next digit (4) from the dividend to 68 and continue with: 684 / 561

Step 3:
561 goes into 684 1 times with a remainder of 123.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 561 from 684 and we're left with 123.
Append the next digit (6) from the dividend to 123 and continue with: 1236 / 561

Moving on to step 4:
The number 561 fits into 1236 2 times, leaving a remainder of 114.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we subtract 1122 from 1236, we get 114.
Fetch the next digit (5) from the dividend, attach it to 114 and continue: 1145 / 561

Advancing to step 5:
1145 divided by 561 is 2 with a remainder of 23.
Write down 2 as next digit of the result. 
Result so far: 122.0
If we subtract 1122 from 1145, we get 23.
Bring next digit (1) of the dividend behind the 23 and repeat the process: 231 / 561

Step 6:
561 can be fit into 231 0 times, resulting in a remainder of 231.
Write down 0 as next digit of the result. 
Result so far: 1220.0
Subtract 0 from 231 to get 231.
Take the next digit (6) from the dividend and append it to 231, then repeat: 2316 / 561

Moving on to step 7:
If we divide 2316 by 561, we get 4 and a remainder of 72.
Record the quotient 4 as the next digit in the result. 
Result so far: 12204.0
The remainder is 72 after subtracting 2244 from 2316.
Grab the next digit (1) from the dividend, add it to 72, then carry on: 721 / 561

On to step 8:
721 divided by 561 is 1 with a remainder of 160.
The next digit of our result is 1. 
Result so far: 122041.0
If we subtract 561 from 721, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 9:
561 goes into 1600 2 times with a remainder of 478.
Record the quotient 2 as the next digit in the result. 
Result so far: 122041.2
The remainder is 478 after subtracting 1122 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Advancing to step 10:
4780 divided by 561 is 8 with a remainder of 292.
Use 8 as the next digit of our solution. 
Result so far: 122041.28
If we take 4488 away from 4780, we end up with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

On to step 11:
If we divide 2920 by 561, we get 5 and a remainder of 115.
Record the quotient 5 as the next digit in the result. 
Result so far: 122041.285
The remainder is 115 after subtracting 2805 from 2920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Going ahead to step 12:
If we divide 1150 by 561, we get 2 and a remainder of 28.
The next digit of our result is 2. 
Result so far: 122041.2852
The remainder is 28 after subtracting 1122 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 13:
If we divide 280 by 561, we get 0 and a remainder of 280.
Write down 0 as next digit of the result. 
Result so far: 122041.2852
The remainder is 280 after subtracting 0 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 14:
561 can be fit into 2800 4 times, resulting in a remainder of 556.
Record the quotient 4 as the next digit in the result. 
Result so far: 122041.285204
If we take 2244 away from 2800, we end up with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Moving on to step 15:
The number 561 fits into 5560 9 times, leaving a remainder of 511.
Put 9 as the next digit of the answer. 
Result so far: 122041.2852049
The remainder is 511 after subtracting 5049 from 5560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

Going ahead to step 16:
561 goes into 5110 9 times with a remainder of 61.
Use 9 as the next digit of our solution. 
Result so far: 122041.28520499
Subtracting 5049 from 5110 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Our division results in 122041.28520499 with a remaining 6.1e-08.