We divide 87979495 by 646
We're looking to find how many times 646 goes into 87979495.

Step 1:
If we divide 8 by 646, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 646

Moving on to step 2:
If we divide 87 by 646, we get 0 and a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Fetch the next digit (9) from the dividend, attach it to 87 and continue: 879 / 646

On to step 3:
The number 646 fits into 879 1 times, leaving a remainder of 233.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 646 from 879 to get 233.
Include the next digit (7) from the dividend after 233, then repeat: 2337 / 646

Step 4:
2337 divided by 646 is 3 with a remainder of 399.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
The remainder is 399 after subtracting 1938 from 2337.
Append the next digit (9) from the dividend to 399 and continue with: 3999 / 646

Step 5:
The number 646 fits into 3999 6 times, leaving a remainder of 123.
The number 6 becomes the next digit in our result. 
Result so far: 136.0
Subtracting 3876 from 3999 leaves us with 123.
Bring next digit (4) of the dividend behind the 123 and repeat the process: 1234 / 646

Going ahead to step 6:
If we divide 1234 by 646, we get 1 and a remainder of 588.
Record the quotient 1 as the next digit in the result. 
Result so far: 1361.0
Deduct 646 from 1234 and we're left with 588.
Fetch the next digit (9) from the dividend, attach it to 588 and continue: 5889 / 646

Step 7:
If we divide 5889 by 646, we get 9 and a remainder of 75.
The number 9 becomes the next digit in our result. 
Result so far: 13619.0
Deduct 5814 from 5889 and we're left with 75.
Include the next digit (5) from the dividend after 75, then repeat: 755 / 646

Moving on to step 8:
755 divided by 646 is 1 with a remainder of 109.
The number 1 becomes the next digit in our result. 
Result so far: 136191.0
If we take 646 away from 755, we end up with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Moving on to step 9:
If we divide 1090 by 646, we get 1 and a remainder of 444.
Write down 1 as next digit of the result. 
Result so far: 136191.1
Subtract 646 from 1090 to get 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Step 10:
If we divide 4440 by 646, we get 6 and a remainder of 564.
Put 6 as the next digit of the answer. 
Result so far: 136191.16
Subtracting 3876 from 4440 leaves us with 564.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

Let's proceed to step 11:
646 goes into 5640 8 times with a remainder of 472.
Record the quotient 8 as the next digit in the result. 
Result so far: 136191.168
If we subtract 5168 from 5640, we get 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Advancing to step 12:
When dividing 4720 by 646, we get 7 with a remainder of 198.
Write down 7 as next digit of the result. 
Result so far: 136191.1687
Deduct 4522 from 4720 and we're left with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Moving on to step 13:
1980 divided by 646 is 3 with a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 136191.16873
Subtracting 1938 from 1980 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 14:
646 can be fit into 420 0 times, resulting in a remainder of 420.
Put 0 as the next digit of the answer. 
Result so far: 136191.16873
If we take 0 away from 420, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 15:
The number 646 fits into 4200 6 times, leaving a remainder of 324.
Record the quotient 6 as the next digit in the result. 
Result so far: 136191.1687306
If we take 3876 away from 4200, we end up with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

On to step 16:
646 can be fit into 3240 5 times, resulting in a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 136191.16873065
Subtract 3230 from 3240 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 136191.16873065, and the remainder is 1e-08.