91098029 ÷ 398 
We want to figure out the number of times 91098029 can be divided by 398.

Let's proceed to step 1:
The number 398 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
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 / 398

Step 2:
If we divide 91 by 398, we get 0 and a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 91 and we're left with 91.
Take the next digit (0) from the dividend and append it to 91, then repeat: 910 / 398

On to step 3:
910 divided by 398 is 2 with a remainder of 114.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 796 away from 910, we end up with 114.
Fetch the next digit (9) from the dividend, attach it to 114 and continue: 1149 / 398

Step 4:
1149 divided by 398 is 2 with a remainder of 353.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
If we subtract 796 from 1149, we get 353.
Append the next digit (8) from the dividend to 353 and continue with: 3538 / 398

Advancing to step 5:
398 can be fit into 3538 8 times, resulting in a remainder of 354.
The number 8 becomes the next digit in our result. 
Result so far: 228.0
The remainder is 354 after subtracting 3184 from 3538.
Grab the next digit (0) from the dividend, add it to 354, then carry on: 3540 / 398

Going ahead to step 6:
398 goes into 3540 8 times with a remainder of 356.
The next digit of our result is 8. 
Result so far: 2288.0
The remainder is 356 after subtracting 3184 from 3540.
Bring next digit (2) of the dividend behind the 356 and repeat the process: 3562 / 398

Advancing to step 7:
The number 398 fits into 3562 8 times, leaving a remainder of 378.
Put 8 as the next digit of the answer. 
Result so far: 22888.0
Subtract 3184 from 3562 to get 378.
Include the next digit (9) from the dividend after 378, then repeat: 3789 / 398

On to step 8:
398 can be fit into 3789 9 times, resulting in a remainder of 207.
Put 9 as the next digit of the answer. 
Result so far: 228889.0
The remainder is 207 after subtracting 3582 from 3789.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Moving on to step 9:
The number 398 fits into 2070 5 times, leaving a remainder of 80.
The number 5 becomes the next digit in our result. 
Result so far: 228889.5
If we take 1990 away from 2070, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 10:
When dividing 800 by 398, we get 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 228889.52
Subtracting 796 from 800 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 11:
40 divided by 398 is 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 228889.52
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 12:
When dividing 400 by 398, we get 1 with a remainder of 2.
The next digit of our result is 1. 
Result so far: 228889.5201
If we take 398 away from 400, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 13:
398 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 228889.5201
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 14:
The number 398 fits into 200 0 times, leaving a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 228889.5201
Deduct 0 from 200 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 228889.5201, with a leftover of 2e-05.