55216597 ÷ 438 
We want to figure out the number of times 55216597 can be divided by 438.

Moving on to step 1:
When dividing 5 by 438, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 438

On to step 2:
438 goes into 55 0 times with a remainder of 55.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Fetch the next digit (2) from the dividend, attach it to 55 and continue: 552 / 438

Going ahead to step 3:
438 can be fit into 552 1 times, resulting in a remainder of 114.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 438 from 552 leaves us with 114.
Fetch the next digit (1) from the dividend, attach it to 114 and continue: 1141 / 438

Advancing to step 4:
438 goes into 1141 2 times with a remainder of 265.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 265 after subtracting 876 from 1141.
Append the next digit (6) from the dividend to 265 and continue with: 2656 / 438

Let's proceed to step 5:
438 can be fit into 2656 6 times, resulting in a remainder of 28.
Put 6 as the next digit of the answer. 
Result so far: 126.0
If we subtract 2628 from 2656, we get 28.
Include the next digit (5) from the dividend after 28, then repeat: 285 / 438

Advancing to step 6:
438 can be fit into 285 0 times, resulting in a remainder of 285.
Put 0 as the next digit of the answer. 
Result so far: 1260.0
The remainder is 285 after subtracting 0 from 285.
Grab the next digit (9) from the dividend, add it to 285, then carry on: 2859 / 438

On to step 7:
2859 divided by 438 is 6 with a remainder of 231.
Use 6 as the next digit of our solution. 
Result so far: 12606.0
The remainder is 231 after subtracting 2628 from 2859.
Append the next digit (7) from the dividend to 231 and continue with: 2317 / 438

Going ahead to step 8:
2317 divided by 438 is 5 with a remainder of 127.
Record the quotient 5 as the next digit in the result. 
Result so far: 126065.0
If we subtract 2190 from 2317, we get 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

Going ahead to step 9:
1270 divided by 438 is 2 with a remainder of 394.
Put 2 as the next digit of the answer. 
Result so far: 126065.2
If we subtract 876 from 1270, we get 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

On to step 10:
The number 438 fits into 3940 8 times, leaving a remainder of 436.
Record the quotient 8 as the next digit in the result. 
Result so far: 126065.28
Subtract 3504 from 3940 to get 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Advancing to step 11:
438 can be fit into 4360 9 times, resulting in a remainder of 418.
Write down 9 as next digit of the result. 
Result so far: 126065.289
Subtracting 3942 from 4360 leaves us with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

On to step 12:
438 can be fit into 4180 9 times, resulting in a remainder of 238.
Record the quotient 9 as the next digit in the result. 
Result so far: 126065.2899
If we take 3942 away from 4180, we end up with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

The quotient of the division is 126065.2899, and the remainder is 0.00238.