We're dividing 9105388 by 400 
We want to figure out the number of times 9105388 can be divided by 400.

Moving on to step 1:
9 divided by 400 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 400

Advancing to step 2:
When dividing 91 by 400, we get 0 with a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Grab the next digit (0) from the dividend, add it to 91, then carry on: 910 / 400

Let's proceed to step 3:
The number 400 fits into 910 2 times, leaving a remainder of 110.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 800 from 910, we get 110.
Include the next digit (5) from the dividend after 110, then repeat: 1105 / 400

Let's proceed to step 4:
The number 400 fits into 1105 2 times, leaving a remainder of 305.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
If we take 800 away from 1105, we end up with 305.
Append the next digit (3) from the dividend to 305 and continue with: 3053 / 400

On to step 5:
400 goes into 3053 7 times with a remainder of 253.
Write down 7 as next digit of the result. 
Result so far: 227.0
If we subtract 2800 from 3053, we get 253.
Include the next digit (8) from the dividend after 253, then repeat: 2538 / 400

Moving on to step 6:
When dividing 2538 by 400, we get 6 with a remainder of 138.
Write down 6 as next digit of the result. 
Result so far: 2276.0
If we subtract 2400 from 2538, we get 138.
Fetch the next digit (8) from the dividend, attach it to 138 and continue: 1388 / 400

Advancing to step 7:
1388 divided by 400 is 3 with a remainder of 188.
The next digit of our result is 3. 
Result so far: 22763.0
If we take 1200 away from 1388, we end up with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Let's proceed to step 8:
If we divide 1880 by 400, we get 4 and a remainder of 280.
The number 4 becomes the next digit in our result. 
Result so far: 22763.4
The remainder is 280 after subtracting 1600 from 1880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 9:
400 goes into 2800 7 times with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 22763.47
Subtract 2800 from 2800 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
If we divide 0 by 400, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 22763.47
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
When dividing 0 by 400, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 22763.47
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 22763.47 and a remainder of 0.0.