We divide 813989 by 51
We want to figure out the number of times 813989 can be divided by 51.

Step 1:
The number 51 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 51

On to step 2:
51 goes into 81 1 times with a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 51 from 81 to get 30.
Fetch the next digit (3) from the dividend, attach it to 30 and continue: 303 / 51

Going ahead to step 3:
The number 51 fits into 303 5 times, leaving a remainder of 48.
Write down 5 as next digit of the result. 
Result so far: 15.0
The remainder is 48 after subtracting 255 from 303.
Take the next digit (9) from the dividend and append it to 48, then repeat: 489 / 51

On to step 4:
51 goes into 489 9 times with a remainder of 30.
Put 9 as the next digit of the answer. 
Result so far: 159.0
If we take 459 away from 489, we end up with 30.
Take the next digit (8) from the dividend and append it to 30, then repeat: 308 / 51

Going ahead to step 5:
When dividing 308 by 51, we get 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 1596.0
If we subtract 306 from 308, we get 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 51

Advancing to step 6:
If we divide 29 by 51, we get 0 and a remainder of 29.
Put 0 as the next digit of the answer. 
Result so far: 15960.0
If we take 0 away from 29, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
51 can be fit into 290 5 times, resulting in a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 15960.5
Subtracting 255 from 290 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 8:
350 divided by 51 is 6 with a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 15960.56
If we subtract 306 from 350, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 9:
The number 51 fits into 440 8 times, leaving a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 15960.568
Deduct 408 from 440 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 10:
When dividing 320 by 51, we get 6 with a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 15960.5686
The remainder is 14 after subtracting 306 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 11:
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: 15960.56862
The remainder is 38 after subtracting 102 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 12:
51 can be fit into 380 7 times, resulting in a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 15960.568627
Subtract 357 from 380 to get 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 13:
230 divided by 51 is 4 with a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 15960.5686274
The remainder is 26 after subtracting 204 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 14:
The number 51 fits into 260 5 times, leaving a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 15960.56862745
If we take 255 away from 260, we end up 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.

Our division results in 15960.56862745 with a remaining 5e-09.