We look at the division of 46785288 by 661 
The aim is to understand the frequency of 661 in 46785288.

On to step 1:
661 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (6) from the dividend to 4 and continue with: 46 / 661

Moving on to step 2:
The number 661 fits into 46 0 times, leaving a remainder of 46.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 46, we get 46.
Grab the next digit (7) from the dividend, add it to 46, then carry on: 467 / 661

Moving on to step 3:
If we divide 467 by 661, we get 0 and a remainder of 467.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 467 leaves us with 467.
Include the next digit (8) from the dividend after 467, then repeat: 4678 / 661

Let's proceed to step 4:
The number 661 fits into 4678 7 times, leaving a remainder of 51.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 4627 from 4678, we get 51.
Grab the next digit (5) from the dividend, add it to 51, then carry on: 515 / 661

Step 5:
When dividing 515 by 661, we get 0 with a remainder of 515.
Write down 0 as next digit of the result. 
Result so far: 70.0
If we subtract 0 from 515, we get 515.
Bring next digit (2) of the dividend behind the 515 and repeat the process: 5152 / 661

Step 6:
When dividing 5152 by 661, we get 7 with a remainder of 525.
Record the quotient 7 as the next digit in the result. 
Result so far: 707.0
The remainder is 525 after subtracting 4627 from 5152.
Bring next digit (8) of the dividend behind the 525 and repeat the process: 5258 / 661

Let's proceed to step 7:
661 can be fit into 5258 7 times, resulting in a remainder of 631.
Write down 7 as next digit of the result. 
Result so far: 7077.0
If we subtract 4627 from 5258, we get 631.
Grab the next digit (8) from the dividend, add it to 631, then carry on: 6318 / 661

Let's proceed to step 8:
661 can be fit into 6318 9 times, resulting in a remainder of 369.
Put 9 as the next digit of the answer. 
Result so far: 70779.0
Subtract 5949 from 6318 to get 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

On to step 9:
661 goes into 3690 5 times with a remainder of 385.
Put 5 as the next digit of the answer. 
Result so far: 70779.5
If we take 3305 away from 3690, we end up with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Step 10:
3850 divided by 661 is 5 with a remainder of 545.
Put 5 as the next digit of the answer. 
Result so far: 70779.55
If we take 3305 away from 3850, we end up with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

The quotient of the division is 70779.55, and the remainder is 0.545.