Let's divide 661502 by 51
We want to figure out the number of times 661502 can be divided by 51.

Step 1:
The number 51 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 51

Moving on to step 2:
51 can be fit into 66 1 times, resulting in a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 51 from 66 and we're left with 15.
Bring next digit (1) of the dividend behind the 15 and repeat the process: 151 / 51

Moving on to step 3:
If we divide 151 by 51, we get 2 and a remainder of 49.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtracting 102 from 151 leaves us with 49.
Take the next digit (5) from the dividend and append it to 49, then repeat: 495 / 51

Going ahead to step 4:
If we divide 495 by 51, we get 9 and a remainder of 36.
Put 9 as the next digit of the answer. 
Result so far: 129.0
Deduct 459 from 495 and we're left with 36.
Include the next digit (0) from the dividend after 36, then repeat: 360 / 51

Let's proceed to step 5:
The number 51 fits into 360 7 times, leaving a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 1297.0
Subtracting 357 from 360 leaves us with 3.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 51

On to step 6:
When dividing 32 by 51, we get 0 with a remainder of 32.
Record the quotient 0 as the next digit in the result. 
Result so far: 12970.0
The remainder is 32 after subtracting 0 from 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 7:
51 can be fit into 320 6 times, resulting in a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 12970.6
Subtracting 306 from 320 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 8:
51 can be fit into 140 2 times, resulting in a remainder of 38.
Record the quotient 2 as the next digit in the result. 
Result so far: 12970.62
Deduct 102 from 140 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 9:
51 goes into 380 7 times with a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 12970.627
Subtracting 357 from 380 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 10:
If we divide 230 by 51, we get 4 and a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 12970.6274
Deduct 204 from 230 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 11:
51 goes into 260 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 12970.62745
Subtracting 255 from 260 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 12:
51 can be fit into 50 0 times, resulting in a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 12970.62745
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 13:
The number 51 fits into 500 9 times, leaving a remainder of 41.
The next digit of our result is 9. 
Result so far: 12970.6274509
The remainder is 41 after subtracting 459 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 14:
If we divide 410 by 51, we get 8 and a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 12970.62745098
Subtract 408 from 410 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

In conclusion, the division gives 12970.62745098 with a balance of 2e-09.