We look at the division of 51206929 by 651 
Let's see how many times 651 fits into 51206929.

On to step 1:
651 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
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 / 651

Advancing to step 2:
51 divided by 651 is 0 with a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Append the next digit (2) from the dividend to 51 and continue with: 512 / 651

Let's proceed to step 3:
651 can be fit into 512 0 times, resulting in a remainder of 512.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 512 after subtracting 0 from 512.
Fetch the next digit (0) from the dividend, attach it to 512 and continue: 5120 / 651

Going ahead to step 4:
651 can be fit into 5120 7 times, resulting in a remainder of 563.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 4557 from 5120 and we're left with 563.
Take the next digit (6) from the dividend and append it to 563, then repeat: 5636 / 651

Moving on to step 5:
If we divide 5636 by 651, we get 8 and a remainder of 428.
Use 8 as the next digit of our solution. 
Result so far: 78.0
If we take 5208 away from 5636, we end up with 428.
Fetch the next digit (9) from the dividend, attach it to 428 and continue: 4289 / 651

Step 6:
651 can be fit into 4289 6 times, resulting in a remainder of 383.
Put 6 as the next digit of the answer. 
Result so far: 786.0
If we subtract 3906 from 4289, we get 383.
Append the next digit (2) from the dividend to 383 and continue with: 3832 / 651

Step 7:
If we divide 3832 by 651, we get 5 and a remainder of 577.
The number 5 becomes the next digit in our result. 
Result so far: 7865.0
Deduct 3255 from 3832 and we're left with 577.
Take the next digit (9) from the dividend and append it to 577, then repeat: 5779 / 651

Step 8:
651 goes into 5779 8 times with a remainder of 571.
Use 8 as the next digit of our solution. 
Result so far: 78658.0
Subtract 5208 from 5779 to get 571.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5710, and continue the process.

Advancing to step 9:
When dividing 5710 by 651, we get 8 with a remainder of 502.
The number 8 becomes the next digit in our result. 
Result so far: 78658.8
If we take 5208 away from 5710, we end up with 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

On to step 10:
651 can be fit into 5020 7 times, resulting in a remainder of 463.
Put 7 as the next digit of the answer. 
Result so far: 78658.87
If we subtract 4557 from 5020, we get 463.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4630, and continue the process.

Let's proceed to step 11:
When dividing 4630 by 651, we get 7 with a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 78658.877
The remainder is 73 after subtracting 4557 from 4630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

The quotient of the division is 78658.877, and the remainder is 0.0073.