41215148 ÷ 661 
The aim is to understand the frequency of 661 in 41215148.

On to step 1:
If we divide 4 by 661, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 661

Step 2:
41 divided by 661 is 0 with a remainder of 41.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 41 after subtracting 0 from 41.
Take the next digit (2) from the dividend and append it to 41, then repeat: 412 / 661

Step 3:
The number 661 fits into 412 0 times, leaving a remainder of 412.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 412, we get 412.
Grab the next digit (1) from the dividend, add it to 412, then carry on: 4121 / 661

Step 4:
4121 divided by 661 is 6 with a remainder of 155.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 3966 from 4121 to get 155.
Bring next digit (5) of the dividend behind the 155 and repeat the process: 1555 / 661

Let's proceed to step 5:
1555 divided by 661 is 2 with a remainder of 233.
Write down 2 as next digit of the result. 
Result so far: 62.0
Subtracting 1322 from 1555 leaves us with 233.
Take the next digit (1) from the dividend and append it to 233, then repeat: 2331 / 661

Advancing to step 6:
661 can be fit into 2331 3 times, resulting in a remainder of 348.
The number 3 becomes the next digit in our result. 
Result so far: 623.0
If we take 1983 away from 2331, we end up with 348.
Fetch the next digit (4) from the dividend, attach it to 348 and continue: 3484 / 661

Let's proceed to step 7:
The number 661 fits into 3484 5 times, leaving a remainder of 179.
Record the quotient 5 as the next digit in the result. 
Result so far: 6235.0
If we subtract 3305 from 3484, we get 179.
Grab the next digit (8) from the dividend, add it to 179, then carry on: 1798 / 661

On to step 8:
When dividing 1798 by 661, we get 2 with a remainder of 476.
The number 2 becomes the next digit in our result. 
Result so far: 62352.0
Deduct 1322 from 1798 and we're left with 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Advancing to step 9:
4760 divided by 661 is 7 with a remainder of 133.
Record the quotient 7 as the next digit in the result. 
Result so far: 62352.7
The remainder is 133 after subtracting 4627 from 4760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

Moving on to step 10:
661 goes into 1330 2 times with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 62352.72
Subtracting 1322 from 1330 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
661 goes into 80 0 times with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 62352.72
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 12:
800 divided by 661 is 1 with a remainder of 139.
Put 1 as the next digit of the answer. 
Result so far: 62352.7201
Deduct 661 from 800 and we're left with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Moving on to step 13:
The number 661 fits into 1390 2 times, leaving a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 62352.72012
If we subtract 1322 from 1390, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 14:
661 can be fit into 680 1 times, resulting in a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 62352.720121
Subtracting 661 from 680 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 15:
661 can be fit into 190 0 times, resulting in a remainder of 190.
Write down 0 as next digit of the result. 
Result so far: 62352.720121
The remainder is 190 after subtracting 0 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 16:
661 goes into 1900 2 times with a remainder of 578.
The number 2 becomes the next digit in our result. 
Result so far: 62352.72012102
Deduct 1322 from 1900 and we're left with 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

The quotient of the division is 62352.72012102, and the remainder is 5.78e-07.