We're dividing 15990053 by 651 
We want to figure out the number of times 15990053 can be divided by 651.

Advancing to step 1:
If we divide 1 by 651, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 651

Moving on to step 2:
15 divided by 651 is 0 with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Grab the next digit (9) from the dividend, add it to 15, then carry on: 159 / 651

Let's proceed to step 3:
When dividing 159 by 651, we get 0 with a remainder of 159.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 159 after subtracting 0 from 159.
Include the next digit (9) from the dividend after 159, then repeat: 1599 / 651

Step 4:
1599 divided by 651 is 2 with a remainder of 297.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 1302 from 1599 and we're left with 297.
Take the next digit (0) from the dividend and append it to 297, then repeat: 2970 / 651

Going ahead to step 5:
The number 651 fits into 2970 4 times, leaving a remainder of 366.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
The remainder is 366 after subtracting 2604 from 2970.
Include the next digit (0) from the dividend after 366, then repeat: 3660 / 651

Moving on to step 6:
651 can be fit into 3660 5 times, resulting in a remainder of 405.
The next digit of our result is 5. 
Result so far: 245.0
The remainder is 405 after subtracting 3255 from 3660.
Append the next digit (5) from the dividend to 405 and continue with: 4055 / 651

Let's proceed to step 7:
When dividing 4055 by 651, we get 6 with a remainder of 149.
Record the quotient 6 as the next digit in the result. 
Result so far: 2456.0
Deduct 3906 from 4055 and we're left with 149.
Bring next digit (3) of the dividend behind the 149 and repeat the process: 1493 / 651

Step 8:
The number 651 fits into 1493 2 times, leaving a remainder of 191.
Write down 2 as next digit of the result. 
Result so far: 24562.0
If we subtract 1302 from 1493, we get 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

On to step 9:
The number 651 fits into 1910 2 times, leaving a remainder of 608.
The next digit of our result is 2. 
Result so far: 24562.2
Deduct 1302 from 1910 and we're left with 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Step 10:
When dividing 6080 by 651, we get 9 with a remainder of 221.
The number 9 becomes the next digit in our result. 
Result so far: 24562.29
If we take 5859 away from 6080, we end up with 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Let's proceed to step 11:
2210 divided by 651 is 3 with a remainder of 257.
Write down 3 as next digit of the result. 
Result so far: 24562.293
Deduct 1953 from 2210 and we're left with 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Let's proceed to step 12:
The number 651 fits into 2570 3 times, leaving a remainder of 617.
The next digit of our result is 3. 
Result so far: 24562.2933
Subtracting 1953 from 2570 leaves us with 617.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6170, and continue the process.

The quotient of the division is 24562.2933, and the remainder is 0.00617.