We're dividing 51993968 by 781 
We want to figure out the number of times 51993968 can be divided by 781.

Let's proceed to step 1:
If we divide 5 by 781, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 781

On to step 2:
781 can be fit into 51 0 times, resulting in a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Take the next digit (9) from the dividend and append it to 51, then repeat: 519 / 781

Let's proceed to step 3:
519 divided by 781 is 0 with a remainder of 519.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 519, we end up with 519.
Grab the next digit (9) from the dividend, add it to 519, then carry on: 5199 / 781

Advancing to step 4:
When dividing 5199 by 781, we get 6 with a remainder of 513.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 4686 from 5199 and we're left with 513.
Grab the next digit (3) from the dividend, add it to 513, then carry on: 5133 / 781

Moving on to step 5:
781 can be fit into 5133 6 times, resulting in a remainder of 447.
Use 6 as the next digit of our solution. 
Result so far: 66.0
If we subtract 4686 from 5133, we get 447.
Append the next digit (9) from the dividend to 447 and continue with: 4479 / 781

Advancing to step 6:
781 can be fit into 4479 5 times, resulting in a remainder of 574.
Use 5 as the next digit of our solution. 
Result so far: 665.0
Subtracting 3905 from 4479 leaves us with 574.
Append the next digit (6) from the dividend to 574 and continue with: 5746 / 781

Step 7:
The number 781 fits into 5746 7 times, leaving a remainder of 279.
Write down 7 as next digit of the result. 
Result so far: 6657.0
Deduct 5467 from 5746 and we're left with 279.
Take the next digit (8) from the dividend and append it to 279, then repeat: 2798 / 781

Advancing to step 8:
When dividing 2798 by 781, we get 3 with a remainder of 455.
The number 3 becomes the next digit in our result. 
Result so far: 66573.0
If we take 2343 away from 2798, we end up with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Moving on to step 9:
4550 divided by 781 is 5 with a remainder of 645.
The number 5 becomes the next digit in our result. 
Result so far: 66573.5
The remainder is 645 after subtracting 3905 from 4550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6450, and continue the process.

Let's proceed to step 10:
If we divide 6450 by 781, we get 8 and a remainder of 202.
Use 8 as the next digit of our solution. 
Result so far: 66573.58
If we take 6248 away from 6450, we end up with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Going ahead to step 11:
The number 781 fits into 2020 2 times, leaving a remainder of 458.
Put 2 as the next digit of the answer. 
Result so far: 66573.582
Deduct 1562 from 2020 and we're left with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Advancing to step 12:
When dividing 4580 by 781, we get 5 with a remainder of 675.
Write down 5 as next digit of the result. 
Result so far: 66573.5825
Subtracting 3905 from 4580 leaves us with 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

On to step 13:
If we divide 6750 by 781, we get 8 and a remainder of 502.
Put 8 as the next digit of the answer. 
Result so far: 66573.58258
Subtract 6248 from 6750 to get 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Going ahead to step 14:
781 goes into 5020 6 times with a remainder of 334.
The next digit of our result is 6. 
Result so far: 66573.582586
If we take 4686 away from 5020, we end up with 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

Let's proceed to step 15:
781 goes into 3340 4 times with a remainder of 216.
Record the quotient 4 as the next digit in the result. 
Result so far: 66573.5825864
If we take 3124 away from 3340, we end up with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 16:
If we divide 2160 by 781, we get 2 and a remainder of 598.
Use 2 as the next digit of our solution. 
Result so far: 66573.58258642
The remainder is 598 after subtracting 1562 from 2160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5980, and continue the process.

The quotient of the division is 66573.58258642, and the remainder is 5.98e-07.