We're dividing 51645469 by 651 
We want to figure out the number of times 51645469 can be divided by 651.

On to step 1:
When dividing 5 by 651, we get 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 651

Let's proceed to step 2:
If we divide 51 by 651, we get 0 and a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Include the next digit (6) from the dividend after 51, then repeat: 516 / 651

Let's proceed to step 3:
When dividing 516 by 651, we get 0 with a remainder of 516.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 516, we get 516.
Append the next digit (4) from the dividend to 516 and continue with: 5164 / 651

Step 4:
5164 divided by 651 is 7 with a remainder of 607.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we take 4557 away from 5164, we end up with 607.
Take the next digit (5) from the dividend and append it to 607, then repeat: 6075 / 651

Going ahead to step 5:
The number 651 fits into 6075 9 times, leaving a remainder of 216.
Use 9 as the next digit of our solution. 
Result so far: 79.0
If we subtract 5859 from 6075, we get 216.
Fetch the next digit (4) from the dividend, attach it to 216 and continue: 2164 / 651

On to step 6:
2164 divided by 651 is 3 with a remainder of 211.
The number 3 becomes the next digit in our result. 
Result so far: 793.0
Subtracting 1953 from 2164 leaves us with 211.
Bring next digit (6) of the dividend behind the 211 and repeat the process: 2116 / 651

On to step 7:
651 can be fit into 2116 3 times, resulting in a remainder of 163.
Use 3 as the next digit of our solution. 
Result so far: 7933.0
The remainder is 163 after subtracting 1953 from 2116.
Fetch the next digit (9) from the dividend, attach it to 163 and continue: 1639 / 651

Step 8:
1639 divided by 651 is 2 with a remainder of 337.
The number 2 becomes the next digit in our result. 
Result so far: 79332.0
Subtracting 1302 from 1639 leaves us with 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Let's proceed to step 9:
651 goes into 3370 5 times with a remainder of 115.
Record the quotient 5 as the next digit in the result. 
Result so far: 79332.5
Deduct 3255 from 3370 and we're left with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Let's proceed to step 10:
If we divide 1150 by 651, we get 1 and a remainder of 499.
Use 1 as the next digit of our solution. 
Result so far: 79332.51
Subtracting 651 from 1150 leaves us with 499.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4990, and continue the process.

Advancing to step 11:
The number 651 fits into 4990 7 times, leaving a remainder of 433.
Write down 7 as next digit of the result. 
Result so far: 79332.517
If we subtract 4557 from 4990, we get 433.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4330, and continue the process.

Let's proceed to step 12:
4330 divided by 651 is 6 with a remainder of 424.
Use 6 as the next digit of our solution. 
Result so far: 79332.5176
Subtracting 3906 from 4330 leaves us with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Advancing to step 13:
651 can be fit into 4240 6 times, resulting in a remainder of 334.
Record the quotient 6 as the next digit in the result. 
Result so far: 79332.51766
Deduct 3906 from 4240 and we're left 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.

The final outcome is 79332.51766, with a leftover of 0.000334.