12415133 ÷ 972 
Let's see how many times 972 fits into 12415133.

Moving on to step 1:
If we divide 1 by 972, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 972

Let's proceed to step 2:
972 can be fit into 12 0 times, resulting in a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (4) from the dividend, add it to 12, then carry on: 124 / 972

Step 3:
When dividing 124 by 972, we get 0 with a remainder of 124.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 124, we get 124.
Fetch the next digit (1) from the dividend, attach it to 124 and continue: 1241 / 972

Let's proceed to step 4:
The number 972 fits into 1241 1 times, leaving a remainder of 269.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 972 from 1241 to get 269.
Include the next digit (5) from the dividend after 269, then repeat: 2695 / 972

Advancing to step 5:
972 goes into 2695 2 times with a remainder of 751.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtract 1944 from 2695 to get 751.
Include the next digit (1) from the dividend after 751, then repeat: 7511 / 972

On to step 6:
When dividing 7511 by 972, we get 7 with a remainder of 707.
Put 7 as the next digit of the answer. 
Result so far: 127.0
Deduct 6804 from 7511 and we're left with 707.
Fetch the next digit (3) from the dividend, attach it to 707 and continue: 7073 / 972

Moving on to step 7:
If we divide 7073 by 972, we get 7 and a remainder of 269.
Write down 7 as next digit of the result. 
Result so far: 1277.0
Subtract 6804 from 7073 to get 269.
Fetch the next digit (3) from the dividend, attach it to 269 and continue: 2693 / 972

Moving on to step 8:
972 can be fit into 2693 2 times, resulting in a remainder of 749.
Put 2 as the next digit of the answer. 
Result so far: 12772.0
If we take 1944 away from 2693, we end up with 749.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7490, and continue the process.

Going ahead to step 9:
972 can be fit into 7490 7 times, resulting in a remainder of 686.
The next digit of our result is 7. 
Result so far: 12772.7
Subtracting 6804 from 7490 leaves us with 686.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6860, and continue the process.

Let's proceed to step 10:
The number 972 fits into 6860 7 times, leaving a remainder of 56.
Put 7 as the next digit of the answer. 
Result so far: 12772.77
Subtract 6804 from 6860 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final outcome is 12772.77, with a leftover of 0.056.